function preloadImages()
{
	var d=document;
	if(d.images)
	{ 
		if(!d.p)
			d.p=new Array();
		var i,j=d.p.length,a=preloadImages.arguments;
		for(i=0; i<a.length; i++)
		{
			if (a[i].indexOf("#")!=0)
			{
				d.p[j]=new Image;
				d.p[j++].src=a[i];
			}
		}
	}
}

function findObj(n, d)
{
	var p,i,x;
	if(!d)
		d=document;
	if((p=n.indexOf("?"))>0&&parent.frames.length) {
		d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);
	}
	if(!(x=d[n])&&d.all)
		x=d.all[n];
	for (i=0;!x&&i<d.forms.length;i++)
		x=d.forms[i][n];
	for(i=0;!x&&d.layers&&i<d.layers.length;i++)
		x=findObj(n,d.layers[i].document);
	if(!x && d.getElementById)
		x=d.getElementById(n);
	return x;
}

function swapImage()
{
	var i,j=0,x,a=swapImage.arguments;
	document.sr=new Array;
	for(i=0;i<(a.length-2);i+=3)
	{
		if ((x=findObj(a[i]))!=null)
		{
			document.sr[j++]=x; 
			if(!x.oSrc)
				x.oSrc=x.src;
			x.src=a[i+2];
		}
	}
}

function swapImgRestore()
{
	var i,x,a=document.sr;
	for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++)
	{
		x.src=x.oSrc;
	}
}

function getStyle(element_id)
{
	if (document.getElementById)
	{
		return document.getElementById(element_id).style;
	}
	else if (document.all)
	{
		return document.all.enlarged_image_div.style;
	}
}

function swapBackgroundImage(element_id, image_path)
{
	getStyle(element_id).backgroundImage = "url("+image_path+")";
}