function divShowHide(id){
    new Ajax.Request("../js/divShowHide.php?id="+id, {
        method: 'get',
        onSuccess: function(transport) {
    	   var c = $(id).className;
    	   if(c == 'extsearchon'){
    		   $(id).className = 'extsearchoff';
    		   $('extsearch').style.display = 'none';
    	   }else{
    		   $(id).className = 'extsearchon';
    		   $('extsearch').style.display = 'inline';
    	   }
    	   $('extsearchonoff').innerHTML =  transport.responseText;
        }
    }
  )
}