if(document.getElementById && navigator.userAgent.match("MSIE")) 
{
dropdown = function()
{
	{
	menuRoot = document.getElementById("navigation");
	for (i=0; i<menuRoot.childNodes.length; i++)
		{
		node = menuRoot.childNodes[i];
		if (node.nodeName=="LI")
			{
			node.onmouseover=function()
				{
				this.className+=" expand";
  				}
			node.onmouseout=function() 
				{
				this.className=this.className.replace(" expand", "");
   				}
   			}
  		}
	}
}
window.onload=dropdown;
}