if (document.images){
     sub1off= new Image(49,16);
     sub1off.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/welcome-0.gif";
     sub1on= new Image(49,16); 
     sub1on.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/welcome-1.gif"; 
     
     sub2off= new Image(84,16);
     sub2off.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/researchareas-0.gif";
     sub2on= new Image(84,16); 
     sub2on.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/researchareas-1.gif";
     
     sub3off= new Image(91,16);
     sub3off.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/researchgroups-0.gif";
     sub3on= new Image(91,16); 
     sub3on.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/researchgroups-1.gif";
     
     sub4off= new Image(93,16);
     sub4off.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/researchcentres-0.gif";
     sub4on= new Image(93,16); 
     sub4on.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/researchcentres-1.gif";

     sub5off= new Image(53,16);
     sub5off.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/seminars-0.gif";
     sub5on= new Image(53,16); 
     sub5on.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/seminars-1.gif";
     
     sub6off= new Image(68,16);
     sub6off.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/publications-0.gif";
     sub6on= new Image(68,16); 
     sub6on.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/publications-1.gif";
     
     researchstudyBoff= new Image(83,16);
	 researchstudyBoff.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/researchstudy-0.gif";
	 researchstudyBon= new Image(83,16) 
	 researchstudyBon.src="/system/modules/au.edu.unsw.cse.new/resources/submenu/research/researchstudy-1.gif";
     
     
}

function submenuTurnOn(imgName){
   if (document.images){
      imgOn=eval(imgName + "on.src");
      document[imgName].src= imgOn;
   }
 }

function submenuTurnOff(imgName){
   if (document.images){
      imgOff=eval(imgName + "off.src");
      document[imgName].src= imgOff;
   }
}