function addLoadEvent(func)
{
	var oldonload = window.onload;
	if (typeof window.onload != 'function')
	{
		window.onload = func;
	}
	else
	{
		window.onload = function()
		{
			oldonload();
			func();
		}
	}
}

addLoadEvent(function() 
{
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) 
	{
		sfEls[i].onmouseover=function() 
		{
			this.className="sfhover";
		}
		sfEls[i].onmouseout=function() 
		{
			this.className= "";
		}
	}
	var sfEls2 = document.getElementById("nav2").getElementsByTagName("LI");
	for (var ii=0; ii<sfEls2.length; ii++) 
	{
		sfEls2[ii].onmouseover=function() 
		{
			this.className="sfhover";
		}
		sfEls2[ii].onmouseout=function() 
		{
			this.className= "";
		}
	}
});