function openLink(fileName)
  { 
		eval("window.open('" + fileName + "','');");
  }   
 function clickButton(e, buttonid){ 

      var evt = e ? e : window.event;

      var bt = document.getElementById(buttonid);

      if (bt){ 

          if (evt.keyCode == 13){ 

                bt.click(); 

                return false; 

          } 

      } 

}