function popup(filename,width,height){
	var ran_unrounded=Math.random()*1000;
	var ran_number=Math.round(ran_unrounded);
	//alert(ran_number);
	var my_window = window.open("popup.php?id="+filename,"win"+ran_number,"width="+width+",height="+height+",top=0,left=0,toolbar=0");
}