last = 0
windowwidth = 0;
windowheight = 0;
ismac = (navigator.appVersion.indexOf("Mac") != -1);
isie = (document.all) ? 1 : 0;
isns4 = (document.layers) ? 1 : 0;
isns6 = (document.getElementById && !document.all) ? 1 : 0;

function initlayers()
{
	if(isie) 		return ie_initlayers();
	else if(isns4)	return ns4_initlayers();
	else if(isns6)	return ns6_initlayers();
}

function ie_initlayers()
{
	LA = document.all.tags("DIV");
	for(x=0;x<LA.length;x++)
	{
		LA[x].init = mapping_ie;
		LA[x].init();
	}
	windowwidth = document.body.clientWidth;
	windowheight = document.body.clientHeight;
	return LA.length;
}

function ns6_initlayers()
{
	LA = document.getElementsByTagName("DIV");
	for(x=0;x<LA.length;x++)
	{
		eval(LA[x].id + " = LA[x]");
		LA[x].init = mapping_ns6;
		LA[x].init();
	}
	windowwidth = window.innerWidth;
	windowheight = window.innerHeight;
	return LA.length;
}

layercount = 0;
function ns4_initlayers()
{
	var x = 0;
	var LA = "";
	if(arguments.length)
		LA = arguments[0];
	else
		LA = document.layers;
	for(x=0;x<LA.length;x++)
	{
		if(LA[x].name != "test")
		{
			eval(LA[x].name + " = LA[x]");
			LA[x].init = mapping_ns4;
			LA[x].init();
			layercount++;
			if(LA[x].document.layers.length)
			ns4_initlayers(LA[x].document.layers)
		}
	}
	windowwidth = window.innerWidth;
	windowheight = window.innerHeight;
	return layercount;
}

function mapping_ns4()
{
	this.setx = 			sx_ns4;
	this.setz =				sz_ns4;
	this.sety =				sy_ns4;
	this.setxy = 			sxy_ns4;
	this.getx = 			gx_ns4;
	this.gety = 			gy_ns4;
	this.show = 			sh_ns4;
	this.hide = 			hi_ns4;
	this.setbgcolor = 		sbc_ns4;
	this.getbgcolor = 		gbc_ns4;
	this.setbg = 			sbi_ns4;
	this.getbg = 			gbi_ns4;
	this.getclipleft = 		gcl_ns4;
	this.getclipright = 	gcr_ns4;
	this.getcliptop = 		gct_ns4;
	this.getclipbottom =	gcb_ns4;
	this.setclipleft = 		scl_ns4;
	this.setclipright = 	scr_ns4;
	this.setcliptop = 		sct_ns4;
	this.setclipbottom = 	scb_ns4;
	this.html = 			ht_ns4;
	this.getheight = 		gh_ns4;
	this.setheight = 		sht_ns4;
	this.setwidth = 		swt_ns4;
	this.getwidth = 		gw_ns4;
	this.childrens =		"";
	if(this.document.layers)
		this.childrens =	this.document.layers;
}

function mapping_ns6()
{
	this.setx = 			sx_w3c;
	this.setz =				sz_w3c;
	this.sety =				sy_w3c;
	this.setxy = 			sxy_w3c;
	this.getx = 			gx_w3c;
	this.gety = 			gy_w3c;
	this.show = 			sh_ns6;
	this.hide = 			hi_ns6;
	this.setbgcolor = 		sbc_w3c;
	this.getbgcolor = 		gbc_w3c;
	this.setbg = 			sbi_w3c;
	this.getbg = 			gbi_w3c;
	this.getclipleft = 		gcl_w3c;
	this.getclipright = 	gcr_w3c;
	this.getcliptop = 		gct_w3c;
	this.getclipbottom = 	gcb_w3c;
	this.setclipleft = 		scl_ns6;
	this.setclipright = 	scr_ns6;
	this.setcliptop = 		sct_ns6;
	this.setclipbottom = 	scb_ns6;
	this.getheight = 		gh_ns6;
	this.setheight = 		sht_w3c;
	this.setwidth = 		swt_w3c;
	this.getwidth = 		gw_ns6;
	this.html = 			ht_ns6ie;
	this.style.clip = 		"rect(auto auto auto auto)"
	this.patch =			patch_ns6;
	this.childrens =		new Array();
	c = 0; nodeList = this.childNodes;
	for(n=0;n<nodeList.length;n++) 
		if(nodeList.item(n).nodeName=="DIV") this.childrens[c++] = nodeList.item(n);
}

function mapping_ie()
{
	this.setx = 			sx_w3c;
	this.setz =				sz_w3c;
	this.sety =				sy_w3c;
	this.setxy = 			sxy_w3c;
	this.getx = 			gx_w3c;
	this.gety = 			gy_w3c;
	this.show = 			sh_w3c;
	this.hide = 			hi_w3c;
	this.setbgcolor = 		sbc_w3c;
	this.getbgcolor = 		gbc_w3c;
	this.setbg = 			sbi_w3c;
	this.getbg = 			gbi_w3c;
	this.getclipleft = 		gcl_w3c;
	this.getclipright = 	gcr_w3c;
	this.getcliptop = 		gct_w3c;
	this.getclipbottom = 	gcb_w3c;
	this.setclipleft = 		scl_w3c;
	this.setclipright = 	scr_w3c;
	this.setcliptop = 		sct_w3c;
	this.setclipbottom = 	scb_w3c;
	this.html = 			ht_ns6ie;
	this.getheight = 		gh_ie;
	this.getwidth = 		gw_ie;
	this.setheight = 		sht_w3c;
	this.setwidth = 		swt_w3c;
	this.style.clip = 		"rect(auto auto auto auto)"
	this.childrens =		new Array();
	c = 0; nodeList = this.all.tags("DIV");
	for(n=0;n<nodeList.length;n++) this.childrens[c++] = nodeList[n];
}

// Netscape4-only functions ///////////////////////////////////////////////
function sx_ns4(x)
{
	this.left = x;
}

function sy_ns4(y)
{
	this.top = y;
}

function sz_ns4(z)
{
	this.zIndex = z;
}

function sxy_ns4(x,y)
{
	this.moveTo(x,y);
	if(arguments.length>2) this.zIndex = arguments[2];
}

function gx_ns4()
{
	return this.left;
}

function gy_ns4()
{
	return(this.top);
}

function getz_ns4()
{
	return(this.zIndex);
}

function sh_ns4()
{
	this.visibility="inherit";
}

function hi_ns4()
{
	this.visibility="hidden";
}

function gh_ns4()
{
	return this.document.height;
}

function gw_ns4()
{
	return this.document.width;
}

function ht_ns4(h)
{
	this.document.open();
	this.document.write(h);
	this.document.close();
}

function location_ns4(x)
{
	this.src = x;
}

function sbc_ns4(color)
{
	this.bgColor = color;
}

function sbi_ns4(image)
{
	this.background.src = image;
}

//
function sht_ns4(h)
{
	this.clip.height = h;
}

function swt_ns4(w)
{
	this.clip.width = w;
}

function gbc_ns4()
{
	return this.bgColor;
}

function gbi_ns4()
{
	return this.background.src;
}

function gcl_ns4()
{
	return this.clip.left;
}

function gcr_ns4()
{
	return this.clip.right;
}

function gct_ns4()
{
	return this.clip.top;
}

function gcb_ns4()
{
	return this.clip.bottom;
}

function scl_ns4(x)
{
	this.clip.left = x;
}

function scr_ns4(x)
{
	this.clip.right = x;
}

function sct_ns4(x)
{
	this.clip.top = x;
}

function scb_ns4(x)
{
	this.clip.bottom = x;
}

// Netscape6-only functions ///////////////////////////////////////////////
function scl_ns6(x)
{
	setclip(this,0,x);
	this.patch();
}

function scr_ns6(r)
{
	setclip(this,1,r);
	this.patch();
}

function sct_ns6(y)
{
	setclip(this,3,y);
	this.patch();
}

function scb_ns6(b)
{
	setclip(this,2,b);
	this.patch();
}

function sh_ns6()
{
	this.style.visibility="visible";
	this.patch();
}

function hi_ns6()
{
	this.style.visibility="hidden";
	this.patch();
}

function patch_ns6()
{
	this.style.left=parseInt(this.style.left)-1;
	this.style.left=parseInt(this.style.left)+1;
}

function gh_ns6()
{
	st = getComputedStyle(this,0);
	return (parseInt(st.getPropertyValue("height")));
}

function gw_ns6()
{
	st = getComputedStyle(this,0);
	return (parseInt(st.getPropertyValue("width")));
}

// W3C compliant functions ////////////////////////////////////////////////
function sx_w3c(x)
{
	this.style.left = x + "px";
}

function sy_w3c(y)
{
	this.style.top = y + "px";
}

function sz_w3c(z)
{
	this.style.zIndex = z;
}

function sxy_w3c(x,y)
{
	this.style.left = x + "px";
	this.style.top = y + "px";
	if(arguments.length>2) this.style.zIndex = arguments[2];
}

function gx_w3c()
{
	return (parseInt(this.style.left));
}

function gy_w3c()	
{
	return(parseInt(this.style.top));
}

function getz_w3c()	
{
	return(parseInt(this.style.zIndex));
}

function sh_w3c()
{
	this.style.visibility="inherit";
}

function hi_w3c()
{
	this.style.visibility="hidden";
}

function sbc_w3c(c)
{
	this.style.backgroundColor = c;
}

function sbi_w3c(i)
{
	this.style.backgroundImage = "url(" + i + ")";
}

function sht_w3c(h)
{
	this.style.height = h;
}

function swt_w3c(w)
{
	this.style.width = w;
}	

function gbc_w3c()
{
	return this.style.backgroundColor;
}

function gbi_w3c(image)
{
	return this.style.backgroundImage;
}

function gct_w3c()
{
	clips = this.style.clip.substring(5,this.style.clip.length-1).split(" ");
	return parseInt(clips[0]);
}

function gcr_w3c()
{
	clips = this.style.clip.substring(5,this.style.clip.length-1).split(" ");
	return (clips[1]);
}

function gcb_w3c()
{
	clips = this.style.clip.substring(5,this.style.clip.length-1).split(" ");
	return parseInt(clips[2]);
}

function gcl_w3c()
{
	clips = this.style.clip.substring(5,this.style.clip.length-1).split(" ");
	return parseInt(clips[3]);
}

function scl_w3c(x)
{
	setclip(this,0,x);
}

function scr_w3c(r)
{
	setclip(this,1,r);
}

function sct_w3c(y)
{
	setclip(this,3,y);
}

function scb_w3c(b)
{
	setclip(this,2,b);
}

function setclip(div,side,value)
{
	if(!div.style.clip) div.style.clip = "rect(auto auto auto auto)"
	clips = div.style.clip.substring(5,div.style.clip.length-1).split(" ");
	clipstr = "";
	for(c=0;c<4;c++)
	{
		if(side!=c)	clipstr += clips[c] + " ";
		else clipstr += value + " " ;
		}
	div.style.clip = "rect(" + clipstr + ")";
}

// IE-specific functions //////////////////////////////////////////////////
function gh_ie()
{
	if(ismac) return this.offsetHeight;
	else return this.scrollHeight;
}

function gw_ie()
{
	if(ismac) return this.offsetWidth;
	else return this.scrollWidth;
}

// IE and NS6 specific functions //////////////////////////////////////////////////
function ht_ns6ie(content)
{
	this.innerHTML = content;
}
// /////////////////////////////////////////////////////////////////////////