// JavaScript Document
function aa (id,element,sClass){
  
  var oTab=document.getElementById(id);
  var aAaa=oTab.getElementsByTagName(element);
 
  var iNow=0;
  
  for(var i=0; i<aAaa.length; i++)
  {
	  aAaa[i].index=i;
	  aAaa[i].onmouseover=function()
	  {  
	      
		  for(var i=0; i<aAaa.length; i++)
	     {
			  aAaa[i].className='';
			 
	     }
		 this.className=sClass;
		 
	  }
	  
  }
}