function FP_preloadImgs() {//v1.0
	var d = document, a = arguments;
	if(!d.FP_imgs)
		d.FP_imgs = new Array();
	for(var i = 0; i < a.length; i++) {
		d.FP_imgs[i]=new Image; d.FP_imgs[i].src=a[i];
	}
}

function FP_swapImgRestore() {//v1.0
	var doc = document, i;
	if(doc.$imgSwaps) {
		for(i = 0; i < doc.$imgSwaps.length; i++) {
			var elm = doc.$imgSwaps[i];
			if(elm) {
				elm.src = elm.$src; 
				elm.$src = null;
			}
		}
		doc.$imgSwaps=null;
	}
}

function FP_swapImg() {//v1.0
	var doc = document, args = arguments, elm, n;
	doc.$imgSwaps = new Array();
	for(n = 2; n < args.length; n+= 2) {
		elm = FP_getObjectByID(args[n]);
		if(elm) {
			doc.$imgSwaps[doc.$imgSwaps.length] = elm;
			elm.$src = elm.src;
			elm.src = args[n+1];
		}
	}
}

function FP_getObjectByID(id,o) {//v1.0
	var c, el, els, f, m, n;
	if(!o)
		o = document;
	if(o.getElementById)
		el = o.getElementById(id);
	else if(o.layers)
		c = o.layers;
	else if(o.all)
		el = o.all[id];
	if(el)
		return el;
	if(o.id == id || o.name == id)
		return o;
	if(o.childNodes)
		c = o.childNodes;
	if(c)
		for(n = 0; n < c.length; n++) {
			el = FP_getObjectByID(id, c[n]);
			if(el)
				return el;
		}
	f = o.forms;
	if(f)
		for(n = 0; n < f.length; n++) {
			els = f[n].elements;
			for(m = 0; m < els.length; m++) {
				el = FP_getObjectByID(id, els[n]);
				if(el)
					return el;
			}
		}
 	return null;
}