//document.getElementById("center").style.display = 'none';

//netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect UniversalBrowserRead');

var rootdomain="http://"+window.location.hostname+"/sumsquare/";
var noclicky = false;
var msb = false;

function ajaxload(url, parameters, containerid, callback)
{
	var page_request = false;
	var clbk = callback;
	if (window.XMLHttpRequest) // if Mozilla, Safari etc
		page_request = new XMLHttpRequest();
	else if (window.ActiveXObject)
	{ // if IE
		try
		{
			page_request = new ActiveXObject("Msxml2.XMLHTTP");
			msb = true;
		} 
		catch (e)
		{
			try
			{
				page_request = new ActiveXObject("Microsoft.XMLHTTP");
				msb = true;
			}
			catch (e){}
		}
	}
	else
		return false;
	
	// Only send post data if needed.
	if(parameters != null)
	{
		page_request.open('POST', rootdomain + url, true);
		page_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		page_request.setRequestHeader("Content-length", parameters.length);
		page_request.setRequestHeader("Connection", "close");

		page_request.onreadystatechange=function()
        	{
                	if(containerid == 'wswordlist')
                        	loadwordlist(page_request);
	                else
        	                loadpage(page_request, containerid);

		        if(callback != null)
		        {
        			if (page_request.readyState == 4)
        			{
			                callback(page_request, containerid);
				}
		        }
        	}
	}
	else
	{
		page_request.open('GET', rootdomain + url, false);
	}

	page_request.send("");
	
	if(callback != null)
	{
		callback(page_request, containerid);
	}
}

function loadpage(page_request, containerid)
{
	if (page_request.readyState == 4)
	{
		if(containerid != null)
		{
			document.getElementById(containerid).innerHTML=page_request.responseText;
			noclicky = false;
		}
	}
}

function ajaxpost(url, formname, containerid, callback)
{
	var fields = new Array();

    if(formname)
	{
		var ajax = formname;
    }
    //loop through form elements and retrieve field NAMEs and Values
    for (var x = 0; x < eval("document."+ajax+".elements.length"); x++)
	{
		// join them into a string.
		eval("fields.push(document."+ajax+".elements[x].name+'='+document."+ajax+".elements[x].value)");
    }
    var sendf = fields.join('&');

	ajaxload(url,sendf,containerid,callback);
}

function publish(req, containerid)
{
	document.getElementById(containerid).innerHTML=req.responseText;
	noclicky = false;
}

var gridsize = 1;
var gridcount = 0;
var gridnumber = 1;

function publishxofx(req, cid)
{
	//document.getElementById("xofx")[0].firstChild.data = gridnumber+' OF '+gridcount;
	document.getElementById("xofx").innerHTML = gridnumber+' OF '+gridcount;
}

function nextgrid()
{
	gridnumber++;
	if(gridnumber > gridcount) gridnumber = 1;

	ajaxload('ssgetgrids.php?gs='+gridsize+'&o='+gridnumber, null, null, publishgrid);
}

function prevgrid()
{

	if(gridnumber > 1) gridnumber--;
	else gridnumber = gridcount;
	
	ajaxload('ssgetgrids.php?gs='+gridsize+'&o='+gridnumber, null, null, publishgrid);
}

function randgrid()
{
	gridnumber=Math.floor(Math.random()*gridcount) + 1;

	ajaxload('ssgetgrids.php?gs='+gridsize+'&o='+gridnumber, null, null, publishgrid);
}

function publishgrid(req, cid)
{
	var width = Number(req.responseXML.getElementsByTagName("width")[0].firstChild.data);
	var height = Number(req.responseXML.getElementsByTagName("height")[0].firstChild.data);
	gridnumber = Number(req.responseXML.getElementsByTagName("gridnumber")[0].firstChild.data);

	// Always get the number of grids of this size (in case that changes live).
	gridcount = Number(req.responseXML.getElementsByTagName("gridcount")[0].firstChild.data);

	var hpadding = (20 - width) / 2;
	var vpadding = (20 - height) / 2;

	var pos = 0;

	var y = 0;

	if(vpadding)
	{
		// Fill in the padding area.
		for(y = 0; y < vpadding; y++)
		{
			for(x = 0; x < 20; x++)
			{
				pos = y * 20 + x;				
				document.getElementById('s'+pos).className = "grpanelcellbl";
			}
		}
	}

	var x = 0;
	var ct = 0;

	for(;y < height + vpadding; y++)
	{
		x = 0;

		if(hpadding)
		{
			for(x = 0; x < hpadding; x++)
			{
                                pos = y * 20 + x;
                                document.getElementById('s'+pos).className = "grpanelcellbl";
			}
		}

		//alert(width + hpadding);
		for(;x < width + hpadding; x++)
		{
			pos = y * 20 + x;
			gp = (y - vpadding) * width + (x - hpadding);

			if(Number(req.responseXML.getElementsByTagName('p'+gp)[0].firstChild.data) == 0)
			{
				// Solid
				document.getElementById('s'+pos).className = "grpanelcellf";
			}
			else
			{
				// Blank
				if(y == height + vpadding - 1)
				{
					if(x == width + hpadding - 1)
					{
						document.getElementById('s'+pos).className = "grpanelcellc";
					}
					else
					{
						document.getElementById('s'+pos).className = "grpanelcellb";
					}
				}
				else
				{
					if(x == width + hpadding - 1)
					{
						document.getElementById('s'+pos).className = "grpanelcellr";
					}
					else
					{
						//alert('x'+x+' y'+y );
						document.getElementById('s'+pos).className = "grpanelcell";
					}
				}
			}
		}

		for(;x < 20; x++)
		{
			pos = y * 20 + x;
			document.getElementById('s'+pos).className = "grpanelcellbl";
		}
	}

	for(;y < 20; y++)
	{
		for(x = 0; x < 20; x++)
		{
			pos = y * 20 + x;
			document.getElementById('s'+pos).className = "grpanelcellbl";
		}
	}

	publishxofx(req, cid);
}

var puzwidth;
var puzheight;

function publishpuzzle(req, cid)
{
	var width;
	var height;
	var xmld = req.responseXML;

	//alert(req.responseText);
	if(xmld.getElementsByTagName("np").length > 0)
	{
		//alert("No puzzle!");
		ajaxload('sssplash.php', null, 'wscenter', publish);
		return;
	}

	if(xmld.getElementsByTagName("gw"))
	{
        	width = Number(xmld.getElementsByTagName("gw")[0].firstChild.data);
	}

	if(xmld.getElementsByTagName("gh"))
	{
        	height = Number(xmld.getElementsByTagName("gh")[0].firstChild.data);
	}

	puzwidth = width;
	puzheight = height;

        var hpadding = (16 - width) / 2;
        var vpadding = (16 - height) / 2;

        var pos = 0;
        var y = 0;

	var firstcell = false;

        if(vpadding)
        {
                // Fill in the padding area.
                for(y = 0; y < vpadding; y++)
                {
                        for(x = 0; x < 16; x++)
                        {
                                pos = y * 16 + x;
                                document.getElementById('pzp'+pos).innerHTML = '<div class="pzbl"></div>';
                        }
                }
        }

        var x = 0;
        var ct = 0;

        for(;y < height + vpadding; y++)
        {
                x = 0;

                if(hpadding)
                {
                        for(x = 0; x < hpadding; x++)
                        {
                                pos = y * 16 + x;
                                document.getElementById('pzp'+pos).innerHTML = '<div class="pzbl"></div>';
                        }
                }

                for(;x < width + hpadding; x++)
                {
                        pos = y * 16 + x;
                        gp = (y - vpadding) * width + (x - hpadding);

			cell = xmld.getElementsByTagName('pc'+gp)[0];

			switch(Number(cell.getElementsByTagName('t')[0].firstChild.data))
			{
				case 1:
					// Solid
                                	document.getElementById('pzp'+pos).innerHTML = '<img id="pzi'+pos+'" src="ssf.gif" />';
					break;
				case 2:
					btotal = cell.getElementsByTagName('bt')[0].firstChild.data;
					if(btotal > 9)
					{
						num1img = "ss"+btotal.charAt(0)+".gif";
						num2img = "ss"+btotal.charAt(1)+".gif";
					}
					else
					{
						num1img = 'sstbn.gif';
						num2img = "ss"+btotal.charAt(0)+".gif";
					}

                                        document.getElementById('pzp'+pos).innerHTML = '<img id="ssbt'+pos+'" class="ssbt" src="ssbt.gif" alt="ssbt" />'+
					'<img id="sstbs3'+pos+'" class="sstbs3" src="sstbs3.gif" alt="sstbs3" />'+
					'<img id="ssn1'+pos+'" class="ssn" src="'+num1img+'" alt="ssn" />'+
					'<img id="ssn2'+pos+'" class="ssn" src="'+num2img+'" alt="ssn" />'+
					'<img id="ssbs1'+pos+'" class="ssbs1" src="ssbs1.gif" alt="ssbs1" />'+
					'<img id="ssbb'+pos+'" class="ssbb" src="ssbb.gif" alt="ssbb" />';
 
					break;
				case 3:
					ttotal = cell.getElementsByTagName('tt')[0].firstChild.data;
                                        if(ttotal > 9)
                                        {
                                                num1img = 'ss'+ttotal.charAt(0)+'.gif';
                                                num2img = 'ss'+ttotal.charAt(1)+'.gif';
                                        }
                                        else
                                        {
                                                num1img = 'sstbn.gif';
                                                num2img = 'ss'+ttotal.charAt(0)+'.gif';
                                        }

                                        document.getElementById('pzp'+pos).innerHTML = '<img id="sstt'+pos+'" class="sstt" src="sstt.gif" alt="sstt" />'+
                                        '<img id="ssts1'+pos+'" class="ssts1" src="ssts1.gif" alt="ssts1" />'+
                                        '<img id="ssn1'+pos+'" class="ssn" src="'+num1img+'" alt="ssn" />'+
                                        '<img id="ssn2'+pos+'" class="ssn" src="'+num2img+'" alt="ssn" />'+
                                        '<img id="sstbs2'+pos+'" class="sstbs2" src="sstbs2.gif" alt="sstbs2" />'+
                                        '<img id="sstb'+pos+'" class="sstb" src="sstb.gif" alt="sstb" />';

					break;
				case 4:
                                        btotal = cell.getElementsByTagName('tt')[0].firstChild.data;
                                        if(btotal > 9)
                                        {
                                                num1img = 'ss'+btotal.charAt(0)+'.gif';
                                                num2img = 'ss'+btotal.charAt(1)+'.gif';
                                        }
                                        else
                                        {
                                                num1img = 'sstbn.gif';
                                                num2img = 'ss'+btotal.charAt(0)+'.gif';
                                        }

                                        ttotal = cell.getElementsByTagName('bt')[0].firstChild.data;
                                        if(ttotal > 9)
                                        {
                                                num3img = 'ss'+ttotal.charAt(0)+'.gif';
                                                num4img = 'ss'+ttotal.charAt(1)+'.gif';
                                        }
                                        else
                                        {
                                                num3img = 'sstbn.gif';
                                                num4img = 'ss'+ttotal.charAt(0)+'.gif';
                                        }

                                        document.getElementById('pzp'+pos).innerHTML = '<img id="sstbt'+pos+'" class="sstbt" src="sstbt.gif" alt="sstbt" />'+
                                                '<img id="sstbs1'+pos+'" class="sstbs1" src="sstbs1.gif" alt="sstbs1" />'+
                                                '<img id="ssn1'+pos+'" class="ssn" src="'+num1img+'" alt="ssn" />'+
                                                '<img id="ssn2'+pos+'" class="ssn" src="'+num2img+'" alt="ssn" />'+
                                                '<img id="sstbs2'+pos+'" class="sstbs2" src="sstbs2.gif" alt="sstbs2" />'+
                                                '<img id="sstbm'+pos+'" class="sstbm" src="sstbm.gif" alt="sstbm" />'+
                                                '<img id="sstbs3'+pos+'" class="sstbs3" src="sstbs3.gif" alt="sstbs3" />'+
                                                '<img id="ssn3'+pos+'" class="ssn" src="'+num3img+'" alt="ssn" />'+
                                                '<img id="ssn4'+pos+'" class="ssn" src="'+num4img+'" alt="ssn" />'+
                                                '<img id="sstbs4'+pos+'" class="sstbs4" src="sstbs4.gif" alt="sstbs4" />'+
                                                '<img id="sstbb'+pos+'" class="sstbb" src="sstbb.gif" alt="sstbb" />';

					break;
				case 5:
					if(!firstcell)
					{
						firstcell = true;
						selectedcell = gp;
					}
					value = cell.getElementsByTagName('v')[0].firstChild.data;
                                        if(value > 0)
                                        {
                                                // Put the number here
                                                document.getElementById('pzp'+pos).innerHTML = '<img id="ssp'+gp+'" class="ssc" src="nln'+value+'.gif" onclick="javascript:selectcell('+gp+');" alt="ssc" />';
                                        }
                                        else
                                        {
                                                document.getElementById('pzp'+pos).innerHTML = '<img id="ssp'+gp+'" class="ssc" src="ssc.gif" onclick="javascript:selectcell('+gp+');" alt="ssc" />';
                                        }
					break;
			}

                }

		if(width < 16)
		{
			pos = y * 16 + x;
			document.getElementById('pzp'+pos).innerHTML = '<img class="pzv" src="ssv.gif" alt="xe"/>';

			x++;
                	
			for(;x < 16; x++)
                	{
                        	pos = y * 16 + x;
                        	document.getElementById('pzp'+pos).innerHTML = '<div class="pzbl"></div>';
                	}
		}
		else
		{
			document.getElementById('pzpxe'+y).innerHTML = '<img src="ssv.gif" alt="xe"/>';
		}
        }

	if(height < 16)
	{
		for(x = 0; x < 16; x++)
		{
			pos = y * 16 + x;

			if(x >= hpadding && x < hpadding + width)
			{
				document.getElementById('pzp'+pos).innerHTML = '<div id="pzbt'+pos+'" class="pzh"></div>';
				document.getElementById('pzbt'+pos).style.background  = '#333333';
			}
			else
			{
				if(x == hpadding + width)
				{
					document.getElementById('pzp'+pos).innerHTML = '<div id="pzbt'+pos+'" class="pzc"></div>';
					document.getElementById('pzbt'+pos).style.background  = '#333333';
				}
				else
				{
					document.getElementById('pzp'+pos).innerHTML = '<div class="pzbl"></div>';
				}
			}
		}

		y++;

        	for(;y < 16; y++)
        	{
                	for(x = 0; x < 16; x++)
                	{
                        	pos = y * 16 + x;
                        	document.getElementById('pzp'+pos).innerHTML = '<div class="pzbl"></div>';
                	}
        	}
	}
	else
	{
		for(x = 0; x < 16; x++)
		{
			document.getElementById('pzpye'+x).style.background  = '#333333';
		}

		document.getElementById('pzpc').style.background = '#333333';
	}
}

function selectgrid()
{
	startnewpuzzle();
}

function publishag(req, containerid)
{
	var gamesactive = req.responseXML.getElementsByTagName("active")[0].firstChild.data;

	if(gamesactive == 1)
	{
		document.getElementById(containerid).innerHTML = gamesactive + " Game Active";
	}
	else
	{
		document.getElementById(containerid).innerHTML = gamesactive + " Games Active";
	}
}

function signinmenu(req, containerid)
{
        ajaxload('sslcon.php', null, 'leftmenu', publish);
        ajaxload('sslc.php',null,'login',publish);
}

function starttimers()
{
	//document.getElementById("center").style.display = "none";
	//document.getElementById("center").style.display = "";
	ajaxload('sspuzzle.php', null, 'wscenter', loadpuzzle);
	document.onkeydown = keyListener;
}

var selectedcell = 0;

function selectcell(pos)
{
//	if(selectedcell == pos)
//	{
		// This was already selected. Pop up the number grid.
		//alert("Selected twice!" + pos);
//	}
//	else
//	{
                if(selectedcell != 0)
                        document.getElementById('ssp'+selectedcell).style.background = '#cccccc';
                selectedcell = pos;
                document.getElementById('ssp'+selectedcell).style.background = '#ff0000';

//	}
}

function placenumber(num)
{
	// Put the number into active puzzle grid
	// Display the number in the cell.
	if(num == 0)
	{
		document.getElementById('ssp'+selectedcell).src = ssc.src;
	}
	else
	{
		document.getElementById('ssp'+selectedcell).src = eval('n'+num+'.src');
	}

	ajaxload('sspn.php?p='+selectedcell+'&n='+num, null, null, null);
}

var ranks = "a23456789tjqk";
var suits = "schd";

function signinmenu(req, containerid)
{
	ajaxload('sslcon.php', null, 'leftmenu', publish);
	ajaxload('sslc.php',null,'login',publish);
}

function signoutmenu(req, containerid)
{
        document.getElementById(containerid).innerHTML=req.responseText;
        ajaxload('sslcon.php', null, 'leftmenu', publish);
}

var ltrpos = 0;

function refreshpuzzle()
{
//        document.getElementById("wscenter").style.display = "none";
        ajaxload('sspuzzle.php', null, 'wscenter', loadpuzzle);
	ajaxload('ssap.php', null, 'gactive', publishag);
//        document.getElementById("wscenter").style.display = "";
}

function refreshboard()
{
	refreshpuzzle();
}

function gameofday()
{
	refreshpuzzle();

//	document.getElementById("wswordlist").innerHTML = '';
}

function gameofdayinfo()
{
}

function loadpuzzle(ref, cid)
{
	publish(ref, cid);
	ajaxload('sspubpuz.php', null, null, publishpuzzle);
	ajaxload('ssap.php', null, 'gactive', publishag);
}

function gendone(ref, cid)
{
	ajaxload('sspuzzle.php',null,'wscenter', loadpuzzle);
}

function startnewpuzzle()
{
	ajaxload('ssnp.php?gs='+gridsize+'&o='+gridnumber,null,null, gendone);

	document.getElementById("wswordlist").innerHTML = '';
}

function opengridwin()
{
	ajaxload('ssgridswin.php', null, 'wscenter', publish);
	showgrid(1);
}

function showgrid(size)
{
	gridsize = size;
	gridnumber = 1;
	ajaxload('ssgetgrids.php?gs='+size+'&o='+gridnumber, null, null, publishgrid);
}

function confirmnewpuzzle(req, containerid)
{
	var gameover = req.responseXML.getElementsByTagName("gameover")[0].firstChild.data;

	if(gameover == 'true')
	{
		startnewgame();
	}
	else
	{
		 alert("You must complete the current game before starting a new one.");
	}
}

function confirmgd(req, containerid)
{
        var gameover = req.responseXML.getElementsByTagName("gameover")[0].firstChild.data;

        if(gameover == 'true')
        {
                gameofday();
        }
        else
        {
		alert("You must complete the current game before starting a new one.");
        }
}

function checkgameover()
{
	ajaxload('pschgo.php', null, null, confirmnewgame);
	//startnewgame();
}

function chgogod()
{
        ajaxload('pschgo.php', null, null, confirmgd);
}

function howtoplay()
{
	// Bring up a how to play panel in place of the gameboard.
	ajaxload('sshtp.php', null, 'wscenter', publish);
}

function highscores()
{
//        ajaxload('pshs.php', null, 'wscenter', publish);
}

function wsstats()
{
 //       ajaxload('psstat.php', null, 'wscenter', publish);
}

function wspstats()
{
   //     ajaxload('pspstat.php', null, 'wscenter', publish);
}

function forum()
{
    window.open('http://'+window.location.hostname+'/forums/index.php?action=vtopic&forum=4','blank');
}

function doneyet(req, cid)
{
        var done = req.responseXML.getElementsByTagName("done")[0].firstChild.data;

        if(done == 1)
        {
		alert("Puzzle Complete!");
        }
        else
        {
		alert("Puzzle Not Complete!");
        }
}

function checkpuzzle()
{
	ajaxload('sschkpuz.php', null, null, doneyet);
}

/**
*
*  MD5 (Message-Digest Algorithm)
*  http://www.webtoolkit.info/
*
**/

var MD5 = function (string) {

    function RotateLeft(lValue, iShiftBits) {
        return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
    }

    function AddUnsigned(lX,lY) {
        var lX4,lY4,lX8,lY8,lResult;
        lX8 = (lX & 0x80000000);
        lY8 = (lY & 0x80000000);
        lX4 = (lX & 0x40000000);
        lY4 = (lY & 0x40000000);
        lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
        if (lX4 & lY4) {
            return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
        }
        if (lX4 | lY4) {
            if (lResult & 0x40000000) {
                return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
            } else {
                return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
            }
        } else {
            return (lResult ^ lX8 ^ lY8);
        }
    }

    function F(x,y,z) { return (x & y) | ((~x) & z); }
    function G(x,y,z) { return (x & z) | (y & (~z)); }
    function H(x,y,z) { return (x ^ y ^ z); }
    function I(x,y,z) { return (y ^ (x | (~z))); }

    function FF(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };

    function GG(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };

    function HH(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };

    function II(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };

    function ConvertToWordArray(string) {
        var lWordCount;
        var lMessageLength = string.length;
        var lNumberOfWords_temp1=lMessageLength + 8;
        var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
        var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
        var lWordArray=Array(lNumberOfWords-1);
        var lBytePosition = 0;
        var lByteCount = 0;
        while ( lByteCount < lMessageLength ) {
            lWordCount = (lByteCount-(lByteCount % 4))/4;
            lBytePosition = (lByteCount % 4)*8;
            lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount)<<lBytePosition));
            lByteCount++;
        }
        lWordCount = (lByteCount-(lByteCount % 4))/4;
        lBytePosition = (lByteCount % 4)*8;
        lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
        lWordArray[lNumberOfWords-2] = lMessageLength<<3;
        lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
        return lWordArray;
    };

    function WordToHex(lValue) {
        var WordToHexValue="",WordToHexValue_temp="",lByte,lCount;
        for (lCount = 0;lCount<=3;lCount++) {
            lByte = (lValue>>>(lCount*8)) & 255;
            WordToHexValue_temp = "0" + lByte.toString(16);
            WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2);
        }
        return WordToHexValue;
    };

    function Utf8Encode(string) {
        string = string.replace(/\r\n/g,"\n");
        var utftext = "";

        for (var n = 0; n < string.length; n++) {

            var c = string.charCodeAt(n);

            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }

        }

        return utftext;
    };

    var x=Array();
    var k,AA,BB,CC,DD,a,b,c,d;
    var S11=7, S12=12, S13=17, S14=22;
    var S21=5, S22=9 , S23=14, S24=20;
    var S31=4, S32=11, S33=16, S34=23;
    var S41=6, S42=10, S43=15, S44=21;

    string = Utf8Encode(string);

    x = ConvertToWordArray(string);

    a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;

    for (k=0;k<x.length;k+=16) {
        AA=a; BB=b; CC=c; DD=d;
        a=FF(a,b,c,d,x[k+0], S11,0xD76AA478);
        d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
        c=FF(c,d,a,b,x[k+2], S13,0x242070DB);
        b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
        a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
        d=FF(d,a,b,c,x[k+5], S12,0x4787C62A);
        c=FF(c,d,a,b,x[k+6], S13,0xA8304613);
        b=FF(b,c,d,a,x[k+7], S14,0xFD469501);
        a=FF(a,b,c,d,x[k+8], S11,0x698098D8);
        d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
        c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
        b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
        a=FF(a,b,c,d,x[k+12],S11,0x6B901122);
        d=FF(d,a,b,c,x[k+13],S12,0xFD987193);
        c=FF(c,d,a,b,x[k+14],S13,0xA679438E);
        b=FF(b,c,d,a,x[k+15],S14,0x49B40821);
        a=GG(a,b,c,d,x[k+1], S21,0xF61E2562);
        d=GG(d,a,b,c,x[k+6], S22,0xC040B340);
        c=GG(c,d,a,b,x[k+11],S23,0x265E5A51);
        b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
        a=GG(a,b,c,d,x[k+5], S21,0xD62F105D);
        d=GG(d,a,b,c,x[k+10],S22,0x2441453);
        c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
        b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
        a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
        d=GG(d,a,b,c,x[k+14],S22,0xC33707D6);
        c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
        b=GG(b,c,d,a,x[k+8], S24,0x455A14ED);
        a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
        d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
        c=GG(c,d,a,b,x[k+7], S23,0x676F02D9);
        b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
        a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
        d=HH(d,a,b,c,x[k+8], S32,0x8771F681);
        c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
        b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
        a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
        d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
        c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
        b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
        a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
        d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
        c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
        b=HH(b,c,d,a,x[k+6], S34,0x4881D05);
        a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
        d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
        c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
        b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
        a=II(a,b,c,d,x[k+0], S41,0xF4292244);
        d=II(d,a,b,c,x[k+7], S42,0x432AFF97);
        c=II(c,d,a,b,x[k+14],S43,0xAB9423A7);
        b=II(b,c,d,a,x[k+5], S44,0xFC93A039);
        a=II(a,b,c,d,x[k+12],S41,0x655B59C3);
        d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
        c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
        b=II(b,c,d,a,x[k+1], S44,0x85845DD1);
        a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
        d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
        c=II(c,d,a,b,x[k+6], S43,0xA3014314);
        b=II(b,c,d,a,x[k+13],S44,0x4E0811A1);
        a=II(a,b,c,d,x[k+4], S41,0xF7537E82);
        d=II(d,a,b,c,x[k+11],S42,0xBD3AF235);
        c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
        b=II(b,c,d,a,x[k+9], S44,0xEB86D391);
        a=AddUnsigned(a,AA);
        b=AddUnsigned(b,BB);
        c=AddUnsigned(c,CC);
        d=AddUnsigned(d,DD);
    }

    var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d);

    return temp.toLowerCase();
}

function wslogin()
{
        md5sum = MD5(document.getElementById('wspw').value);
	lname = document.getElementById('wsun').value;
        ajaxload('sslc.php?action=wsli&pw='+md5sum+'&un='+lname,null,'login', signinmenu);
}

function wsregister()
{
        md5sumpw1 = document.getElementById('wspw1').value;
	md5sumpw2 = document.getElementById('wspw2').value;
	email = document.getElementById('wsem').value;
        lname = document.getElementById('wsunrg').value;
        ajaxload('../php/wsnu.php?action=wsrg&wspw1='+md5sumpw1+'&wspw2='+md5sumpw2+'&wsunrg='+lname+'&wsem='+email,null,'wscenter', publish);
}

var v_fixDblKey = 0;
function fixDblKey() {
        if (v_fixDblKey != 0) {
                return true;
        } else {
                v_fixDblKey = setTimeout('v_fixDblKey = 0;', 20);
                return false;
        }
}

function keyListener(e)
{
	if(fixDblKey()) {return;}
   if(!e){
      //for IE
      e = window.event;
   }

	var good = false;
	var lastgood = selectedcell;
	var sc =selectedcell;

	//alert(e.keyCode);

	if(e.keyCode >= 48 && e.keyCode <= 57)
	{
		if(selectedcell != 0)
		{
			placenumber(e.keyCode - 48);
		}
	}

	switch(e.keyCode)
	{
		case 37: // LEFT
			if((sc % puzwidth) > 1)
			{
				do
				{
					sc--;
					if(document.getElementById('ssp'+sc))
                                        {
                                                if(document.getElementById('ssp'+sc).className == 'ssc') good = true;
                                        }

                                        if((sc % puzwidth) == 0)
                                        {
                                                sc = lastgood;
                                                good = true;
                                        }
				}while(good == false);

				if(sc != lastgood) selectcell(sc);
			}
			break;
		case 38: // UP
			if((sc / puzwidth) > 1)
			{
                                do
                                {
                                        sc-=puzwidth;
					if(document.getElementById('ssp'+sc))
                                        {
                                                if(document.getElementById('ssp'+sc).className == 'ssc') good = true;
                                        }

                                        if((sc / puzwidth) <= 0)
                                        {
                                                sc = lastgood;
                                                good = true;
                                        }
                                }while(good == false);

				if(sc != lastgood) selectcell(sc);
			}
			break;
		case 39: // RIGHT
			if((sc % puzwidth) < puzwidth - 1)
			{
                                do
                                {
                                        sc++;
					if(document.getElementById('ssp'+sc))
                                        {
                                                if(document.getElementById('ssp'+sc).className == 'ssc') good = true;
                                        }

                                        if((sc % puzwidth) == 0)
                                        {
                                                sc = lastgood;
                                                good = true;
                                        }
                                }while(good == false);

				if(sc != lastgood) selectcell(sc);
			} 
			break;
		case 40: // DOWN
			if((sc / puzwidth) < puzheight - 1)
			{
				//alert('here');
                                do
                                {
					
                                        sc+=puzwidth;
					if(document.getElementById('ssp'+sc))
					{
	                                        if(document.getElementById('ssp'+sc).className == 'ssc') good = true;
					}

					if((sc / puzwidth) >= puzheight)
                                        {
                                        	sc = lastgood;
                                                good = true;
                                        }
                                }while(good == false);

				if(sc != lastgood) selectcell(sc);
			}
			break;
	}
}