function wopen(url,name,w,h)
{w+=32;h+=96;wleft=(screen.width-w)/2;wtop=(screen.height-h)/2;var win=window.open(url,name,'width='+w+', height='+h+', '+'left='+wleft+', top='+wtop+', '+'location=no, menubar=no, '+'status=no, toolbar=no, scrollbars=yes, resizable=no');win.resizeTo(w,h);win.moveTo(wleft,wtop);win.focus();}