// ================================================================
//                   ------ dock menu -------
//			   GugusLand.fr
// ================================================================

var xm = xmb = ov = 0;
var M = true;
// xm : position de la souris (en px)
// pxLeft(o) position de la premère image

function dock(dock, sMin, sMax)
{
	this.icons = document.getElementById(dock).getElementsByTagName('img');
	this.N = this.icons.length;
	this.s = sMin;
	this.ovk = 0;
	this.pxLeft = function(o)
	{
		for(var x=-document.documentElement.scrollLeft; o != null; o = o.offsetParent) x+=o.offsetLeft;
		return x;
	}
	for(var i=0;i<this.N;i++)
	{
		with(this.icons[i])
		{
			style.width = sMin+"px";
			style.height = sMin+"px";
			className = "dockicon";
		}
	}
	this.run = function()
	{
		with(this)
		{
			for(var i=0;i<N;i++)
			{
				var o = icons[i];
				var W = parseInt(o.style.width);
				if(ov && ov.className=="dockicon")
				{
					if(M) W = Math.max((s*Math.cos(0.5*((pxLeft(o)+W/2)-xm)/sMax)),sMin);
					s = Math.min(sMax,s+1);
				}
				else
				{
					s = Math.max(s-1,sMin);
					W = Math.max((W-N),sMin);
				}
				o.style.width = W+"px";
				o.style.height = W+"px";
			}
			if(s >= sMax) M = false;
		}
	}
}
document.onmousemove = function(e)
{
	if(window.event) e=window.event;
	xm = (e.x || e.clientX);
	if(xm!=xmb){
		M = true;
		xmb = xm;
	}
	ov = (e.target)?e.target:((e.srcElement)?e.srcElement:null);
}
function lancerDock()
{
	dock = new dock("dock", 60, 80);
	setInterval("dock.run()", 1);
} 

function png_trans()
{
var arVersion = navigator.appVersion.split("MSIE")
var version = parseFloat(arVersion[1])

if (((version >= 5.5) && (version <= 7)) && (document.body.filters)) 
	{
	for(var i=0; i<document.images.length; i++)
		{
		var img = document.images[i]
		var imgName = img.src.toUpperCase()
		if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
			{
				var imgID = (img.id) ? "id='" + img.id + "' " : ""
				var imgClass = (img.className) ? "class='" + img.className + "' " : ""
				var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
				var imgStyle = "display:inline-block;" + img.style.cssText 
				if (img.align == "left") imgStyle = "float:left;" + imgStyle
				if (img.align == "right") imgStyle = "float:right;" + imgStyle
				if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
				var strNewHTML = "<span " + imgID + imgClass + imgTitle
				+ " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
				+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
				+ "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
				img.outerHTML = strNewHTML
				i = i-1
			}
		}
	}
}