function spawnChild( target, windowname, width, height, showMenu, scroll, resize) {
   if (typeof(width) == "undefined") {
      width = 620;
   }
   if (typeof(height) == "undefined") {
      height = 600;
   }
   if (typeof(showMenu) == "undefined") {
      showMenu = "no";
   }
   if (typeof(scroll) == "undefined") {
      scroll = "yes";
   }
   if (typeof(resize) == "undefined") {
      resize = "yes";
   }
   if (typeof(windowname) != "undefined") {
      while (windowname.indexOf(' ') != -1) {
         windowname = windowname.replace(' ','');
      }
   }
   var helpwinpopup = window.open(target,windowname,'width='+width+', height='+height+', toolbar=no, scrollbars='+scroll+', menubar='+showMenu+', location=no, status=no, resizable='+resize);
	helpwinpopup.moveTo(((screen.width-width)/2),((screen.height-height)/2));
	helpwinpopup.focus();
}
function spawnChild_ex( target, windowname, width, height, showMenu, scroll, resize) {
   if (typeof(width) == "undefined") {
      width = 620;
   }
   if (typeof(height) == "undefined") {
      height = 600;
   }
   if (typeof(showMenu) == "undefined") {
      showMenu = "no";
   }
   var helpwinpopup = window.open(target,windowname,'width='+width+', height='+height+', toolbar=no, scrollbars='+scroll+', menubar='+showMenu+', location=no, status=no, resizable='+resize);
	helpwinpopup.moveTo(((screen.width-width)/2),((screen.height-height)/2));
	helpwinpopup.focus();
}

function refreshParentAndClose() {
   //window.opener.history.go(-1);
	window.opener.location.reload();
	window.opener.focus();
	window.close();
}

function spawnChildAndGoBack(pageurl) {
 //,status=no,menubar=no,toolbar=no
	var helpwinpopup = window.open(pageurl,'Assign','width=620,height=600,scrollbars=yes,scrollable=yes,resizable=yes');
	helpwinpopup.moveTo(((screen.width/2)-310),((screen.height/2)-300));
	
   history.go(-1);
   
	helpwinpopup.focus();
	
}