function upopup(url,w,h,s,n){
	var x;
	var l = (window.screen.width-w)/2;
	var t = (window.screen.height-h)/2; 
	x = window.open(url,n,"height="+h+",width="+w+",status=no,toolbar=no,menubar=no,location=no,scrollbars="+s+",left="+l+",top="+t);
    x.window.focus();
}