var tB_Window = null;

var popWinHigher = 28 + 24;

function mrx_PopupWindow(popWinURL,popWinName,popWinFeatures,popWinWidth,popWinHeight)
 {
   popWinx = (((window.screen.height - popWinHigher) / 2) - (popWinHeight / 2));
   popWiny = ((window.screen.width / 2) - (popWinWidth / 2));

   popWinAttributes = popWinFeatures + ',width='+popWinWidth+',height='+popWinHeight+',top='+popWinx+',left='+popWiny;
  
	tB_Window = window.open(popWinURL,popWinName,popWinAttributes);   
	tB_Window.window.focus();
 }