var agt = navigator.userAgent.toLowerCase();
var is_ie	   = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_gecko  = (navigator.product == "Gecko");


function showme(el)
{
root = document.getElementById('gmenu').childNodes;

for (i=0; i<root.length; i++)
 {
  if (root[i].hasChildNodes())
      {
       if (is_ie)
           {
            if (root[i].childNodes[1]){ root[i].childNodes[1].style.display="none";    }
            if (root[i].childNodes[0]){ root[i].childNodes[0].style.background = "url(../usr/images/yvens_menu_1.gif)";}
           }
       else if (is_gecko) 
           {

            if (root[i].childNodes[3] && root[i].childNodes[3].style )
                {
                 root[i].childNodes[3].style.display="none";    
                }

            if (root[i].childNodes[1] && root[i].childNodes[1].style)
                {
                 root[i].childNodes[1].style.background = "url(../usr/images/yvens_menu_1.gif)";
                }
           }
      }
 }

if (is_ie)
    {
     el.parentNode.parentNode.childNodes[1].style.display="block";    
     el.parentNode.parentNode.childNodes[0].style.background = "url(../usr/images/yvens_menu_2.gif)";
    }
else if (is_gecko) 
    {
     if (el.parentNode.parentNode.childNodes[3])
         {
          el.parentNode.parentNode.childNodes[3].style.display="block";     
         }

     if (el.parentNode.parentNode.childNodes[1])
         {
          el.parentNode.parentNode.childNodes[1].style.background = "url(../usr/images/yvens_menu_2.gif)"; 
         }
    }  
}