function product_zoom(prodid,url,w,h) {
	w=w+32;
	h=h+64;
	var title = prodid;
//	var url = '/db/upload/products/images/big/'+ prodid + '.jpg';
	var wint =0;
	if(screen.width){
		var winl = (screen.width - w)/2;
		var wint = (screen.height - h)/2;
	}else{
		var winl = 0;
	}
	if (winl < 0) winl = 0;
	if (wint < 0) wint = 0;
	var settings = 'height=' + h + ',';
	settings += 'width=' + w + ',';
	settings += 'top=' + wint + ',';
	settings += 'left=' + winl + ',';
//	settings += 'scrollbars=yes';
	window.open(url, title, settings);
}