var w;
function wopen(rid,j_wid,j_hei) {
	if (navigator.appName.indexOf('Internet Explorer') != -1 ? w && !w.closed : w && !w.closed && w.closed != undefined) { w.close(); }
	w = window.open("_popup.php?file="+rid+"&w="+j_wid+"&h="+j_hei, "winbox", "toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=0, resizable=0, width="+ j_wid +", height="+ j_hei +", left="+(screen.width-j_wid)/2+", top="+(screen.height-j_hei)/2);
}