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

/* find object */
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);
	return x;
}

/* swap image */
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]))) {
		document.sr[j++] = x;
		if(!x.oSrc) x.oSrc = x.src; x.src = a[i+2];
	}
}

/* swap image restore */
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;
}