Cannot get .focus to work in firefox

[siege]

I cannot an existing child window to focus in firfox using the below. This script works fine under Safari and Netscape. Is there a way to make a child window focus in firefox?

Code: Select all

var win=null;
var openedYet=false;
function poppy(mypage,myname,w,h,scroll,pos){
   //alert ("area 0");
   if(!openedYet){
    //alert ("area 1");
      if(pos=="random"){
         LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;
         settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
         win=window.open(mypage,myname,settings);
         
         }
      if(pos=="center"){
         LeftPosition=(screen.width)?(screen.width-w)/2:100;TopPosition=(screen.height)?(screen.height-h)/2:100;
         settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
         win=window.open(mypage,myname,settings);
         
         }
      else if((pos!="center" && pos!="random") || pos==null){
         LeftPosition=50;
         TopPosition=50;
          alert ("area 2: Did not specify correct position  or gave no position");
      }
      openedYet=true;
      }else{
       
       if(loaded=="false"){
       LeftPosition=x;
       TopPosition=y;
       //alert("im loaded but needs new win");
       settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
      win=window.open(mypage,myname,settings);
      }else{
      // this focus will not work - why?
      win.focus();
      }
   
   }


}