var oPop=null;
function openPopUp(theURL,winName,features) { //v2.0
  if(oPop) oPop.focus();
  oPop=window.open(theURL,winName,features);
} 

function focusPop() { 
  var oPopDiv=document.getElementById("inter_popup");
  if(oPopDiv) {
    window.focus();
  }
}
 
window.onload=focusPop;