function popUp(url,w,h) {
		if(w == '' || w < 100) w = 500;
		if(h == '' || h < 100) h = 300;
		//alert(h+"\n"+w);
		popup = window.open(url,'bla','width='+w+',height='+h+',top=50,left=50,scrollbars=no,status=no,location=no,titlebar=no,resiseable=no,menu=no,toolbars=no');
	}