function preload_img() {
var d=document;
	if (d.images) {
		x=preload_img.arguments;
		d.img_srcs=new Array();
		for (i=0; i < x.length; i++) {
			d.img_srcs[i] = new Image();
			d.img_srcs[i].src=x[i];
		}	
	}
}

function image_over(imagename, im) {
	x=image_over.arguments;
	d=document;
	run=false

	for (i=0; i < d.img_srcs.length; i++) {
		aa=d.img_srcs[i].src.lastIndexOf('/')+1;
		ab=d.img_srcs[i].src.length;
		q=d.img_srcs[i].src.substr(aa,ab);
//		alert (q + " " + x[1]);
		if (q==x[1])
			run=true;
	}
	if (run==true)
		document.images[x[0]].src = x[2] + x[1];
}