
function stopProp(e) { 
  if( (navigator.userAgent.indexOf("MSIE")>-1 && navigator.userAgent.indexOf("compatible")>1 && !(navigator.userAgent.indexOf("opera")>-1)))  { // IE
    if(!e) e = window.event; e.cancelBubble = true;
  } else { //Other Browsers
    e.stopPropagation(); 
  }
}

function getElementLeft(o) {
  var x = o.offsetLeft, p = o.offsetParent;
  while (p != null) { x += p.offsetLeft; p = p.offsetParent; }
	return x;
}

function getElementTop(o) {
	var y = o.offsetTop, p = o.offsetParent;
	while (p != null) { y += p.offsetTop; p = p.offsetParent; }
	return y;
}



// LM 3
/**************************************************
 * dom-drag.js
 * 09.25.2001
 * www.youngpup.net
 * Script featured on Dynamic Drive (http://www.dynamicdrive.com) 12.08.2005
 **************************************************
 * 10.28.2001 - fixed minor bug where events
 * sometimes fired off the handle, not the root.
 **************************************************/


var hexcase=0;var b64pad="";var chrsz=8;function hex_sha1(s){return binb2hex(core_sha1(str2binb(s),s.length*chrsz));}function b64_sha1(s){return binb2b64(core_sha1(str2binb(s),s.length*chrsz));}function str_sha1(s){return binb2str(core_sha1(str2binb(s),s.length*chrsz));}function hex_hmac_sha1(key,data){return binb2hex(core_hmac_sha1(key,data));}function b64_hmac_sha1(key,data){return binb2b64(core_hmac_sha1(key,data));}function str_hmac_sha1(key,data){return binb2str(core_hmac_sha1(key,data));}function sha1_vm_test(){return hex_sha1("abc")=="a9993e364706816aba3e25717850c26c9cd0d89d";}function core_sha1(x,len){x[len>>5]|=0x80<<(24-len%32);x[((len+64>>9)<<4)+15]=len;var w=Array(80);var a=1732584193;var b=-271733879;var c=-1732584194;var d=271733878;var e=-1009589776;for(var i=0;i<x.length;i+=16){var olda=a;var oldb=b;var oldc=c;var oldd=d;var olde=e;for(var j=0;j<80;j++){if(j<16)w[j]=x[i+j];else w[j]=rol(w[j-3]^w[j-8]^w[j-14]^w[j-16],1);var t=safe_add(safe_add(rol(a,5),sha1_ft(j,b,c,d)),safe_add(safe_add(e,w[j]),sha1_kt(j)));e=d;d=c;c=rol(b,30);b=a;a=t;}a=safe_add(a,olda);b=safe_add(b,oldb);c=safe_add(c,oldc);d=safe_add(d,oldd);e=safe_add(e,olde);}return Array(a,b,c,d,e);}function sha1_ft(t,b,c,d){if(t<20)return(b&c)|((~b)&d);if(t<40)return b^c^d;if(t<60)return(b&c)|(b&d)|(c&d);return b^c^d;}function sha1_kt(t){return(t<20)?1518500249:(t<40)?1859775393:(t<60)?-1894007588:-899497514;}function core_hmac_sha1(key,data){var bkey=str2binb(key);if(bkey.length>16)bkey=core_sha1(bkey,key.length*chrsz);var ipad=Array(16),opad=Array(16);for(var i=0;i<16;i++){ipad[i]=bkey[i]^0x36363636;opad[i]=bkey[i]^0x5C5C5C5C;}var hash=core_sha1(ipad.concat(str2binb(data)),512+data.length*chrsz);return core_sha1(opad.concat(hash),512+160);}function safe_add(x,y){var lsw=(x&0xFFFF)+(y&0xFFFF);var msw=(x>>16)+(y>>16)+(lsw>>16);return(msw<<16)|(lsw&0xFFFF);}function rol(num,cnt){return(num<<cnt)|(num>>>(32-cnt));}function str2binb(str){var bin=Array();var mask=(1<<chrsz)-1;for(var i=0;i<str.length*chrsz;i+=chrsz)bin[i>>5]|=(str.charCodeAt(i/chrsz)&mask)<<(32-chrsz-i%32);return bin;}function binb2str(bin){var str="";var mask=(1<<chrsz)-1;for(var i=0;i<bin.length*32;i+=chrsz)str+=String.fromCharCode((bin[i>>5]>>>(32-chrsz-i%32))&mask);return str;}function binb2hex(binarray){var hex_tab=hexcase?"0123456789ABCDEF":"0123456789abcdef";var str="";for(var i=0;i<binarray.length*4;i++){str+=hex_tab.charAt((binarray[i>>2]>>((3-i%4)*8+4))&0xF)+hex_tab.charAt((binarray[i>>2]>>((3-i%4)*8))&0xF);}return str;}function binb2b64(binarray){var tab="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";var str="";for(var i=0;i<binarray.length*4;i+=3){var triplet=(((binarray[i>>2]>>8*(3-i%4))&0xFF)<<16)|(((binarray[i+1>>2]>>8*(3-(i+1)%4))&0xFF)<<8)|((binarray[i+2>>2]>>8*(3-(i+2)%4))&0xFF);for(var j=0;j<4;j++){if(i*8+j*6>binarray.length*32)str+=b64pad;else str+=tab.charAt((triplet>>6*(3-j))&0x3F);}}return str;}


var Drag = {

	obj : null,

	init : function(o, oRoot, minX, maxX, minY, maxY, bSwapHorzRef, bSwapVertRef, fXMapper, fYMapper)
	{
		o.onmousedown	= Drag.start;

		o.hmode			= bSwapHorzRef ? false : true ;
		o.vmode			= bSwapVertRef ? false : true ;

		o.root = oRoot && oRoot != null ? oRoot : o ;

		if (o.hmode  && isNaN(parseInt(o.root.style.left  ))) o.root.style.left   = getElementLeft(o) + "px";
		if (o.vmode  && isNaN(parseInt(o.root.style.top   ))) o.root.style.top    = getElementTop(o) + "px";
		if (!o.hmode && isNaN(parseInt(o.root.style.right ))) o.root.style.right  = "0px";
		if (!o.vmode && isNaN(parseInt(o.root.style.bottom))) o.root.style.bottom = "0px";

		o.minX	= typeof minX != 'undefined' ? minX : null;
		o.minY	= typeof minY != 'undefined' ? minY : null;
		o.maxX	= typeof maxX != 'undefined' ? maxX : null;
		o.maxY	= typeof maxY != 'undefined' ? maxY : null;

		o.xMapper = fXMapper ? fXMapper : null;
		o.yMapper = fYMapper ? fYMapper : null;

		o.root.onDragStart	= new Function();
		o.root.onDragEnd	= new Function();
		o.root.onDrag		= new Function();
	},

	start : function(e)
	{
    var ok=1;
    try{eval("ok="+this.id+"DragStart(e);");}catch(e){}
    if(ok==0)return;
		var o = Drag.obj = this;
		e = Drag.fixE(e);
		var y = parseInt(o.vmode ? o.root.style.top  : o.root.style.bottom);
		var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
		o.root.onDragStart(x, y);

		o.lastMouseX	= e.clientX;
		o.lastMouseY	= e.clientY;

		if (o.hmode) {
			if (o.minX != null)	o.minMouseX	= e.clientX - x + o.minX;
			if (o.maxX != null)	o.maxMouseX	= o.minMouseX + o.maxX - o.minX;
		} else {
			if (o.minX != null) o.maxMouseX = -o.minX + e.clientX + x;
			if (o.maxX != null) o.minMouseX = -o.maxX + e.clientX + x;
		}

		if (o.vmode) {
			if (o.minY != null)	o.minMouseY	= e.clientY - y + o.minY;
			if (o.maxY != null)	o.maxMouseY	= o.minMouseY + o.maxY - o.minY;
		} else {
			if (o.minY != null) o.maxMouseY = -o.minY + e.clientY + y;
			if (o.maxY != null) o.minMouseY = -o.maxY + e.clientY + y;
		}

		document.onmousemove	= Drag.drag;
		document.onmouseup		= Drag.end;

		return false;
	},

	drag : function(e)
	{
    try{eval(Drag.obj.id+"Drag(e);");}catch(e){}

		e = Drag.fixE(e);
		var o = Drag.obj;

		var ey	= e.clientY;
		var ex	= e.clientX;
		var y = parseInt(o.vmode ? o.root.style.top  : o.root.style.bottom);
		var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
		var nx, ny;

		if (o.minX != null) ex = o.hmode ? Math.max(ex, o.minMouseX) : Math.min(ex, o.maxMouseX);
		if (o.maxX != null) ex = o.hmode ? Math.min(ex, o.maxMouseX) : Math.max(ex, o.minMouseX);
		if (o.minY != null) ey = o.vmode ? Math.max(ey, o.minMouseY) : Math.min(ey, o.maxMouseY);
		if (o.maxY != null) ey = o.vmode ? Math.min(ey, o.maxMouseY) : Math.max(ey, o.minMouseY);
		nx = x + ((ex - o.lastMouseX) * (o.hmode ? 1 : -1));
		ny = y + ((ey - o.lastMouseY) * (o.vmode ? 1 : -1));

		if (o.xMapper)		nx = o.xMapper(y)
		else if (o.yMapper)	ny = o.yMapper(x)

    //------------ recoded for grooze (fucks up in IE as usual!)----------------
    //dbg("-----------<br>ex="+ex+"<br>x="+x+"<br>nx="+nx);;
		//Drag.obj.root.style[o.hmode ? "left" : "right"] = nx + "px";
		//Drag.obj.root.style[o.vmode ? "top" : "bottom"] = ny + "px";
		if(o.minX != 0) Drag.obj.root.style[o.hmode ? "left" : "right"] = nx + "px";
		if(o.minY != 0) Drag.obj.root.style[o.vmode ? "top" : "bottom"] = ny + "px";


		Drag.obj.lastMouseX	= ex;
		Drag.obj.lastMouseY	= ey;

		Drag.obj.root.onDrag(nx, ny);

		return false;
	},

	end : function(e)
	{
    try{eval(Drag.obj.id+"DragEnd(e);");}catch(e){}

		document.onmousemove = null;
		document.onmouseup   = null;
		Drag.obj.root.onDragEnd(	parseInt(Drag.obj.root.style[Drag.obj.hmode ? "left" : "right"]), 
									parseInt(Drag.obj.root.style[Drag.obj.vmode ? "top" : "bottom"]));
		Drag.obj = null;
	},

	fixE : function(e)
	{
		if (typeof e == 'undefined') e = window.event;
    else if(gIE)e = window.event;                   //to fix a grooze thumbs scroll bug!!!

		if (typeof e.layerX == 'undefined') e.layerX = e.offsetX;
		if (typeof e.layerY == 'undefined') e.layerY = e.offsetY;
		return e;
	}
};

