function open_popup(pidx,wid,hei,tops,lefts){
	var win;
	win=window.open("/popup_page.php?pidx="+pidx,"pop_win_"+pidx,"top="+tops+",left="+lefts+",width="+wid+",height="+hei+",scrollbars=yes");
	try{ win.focus(); }catch(e){}
}