function navInit()	{
	if (document.getElementById)	{
		var navList = document.getElementById('nav_ul');

		for(var i = 0;i < navList.childNodes.length;i++)	{

			if (navList.childNodes[i].nodeName == 'LI')	{
				var node = navList.childNodes[i];
				node.onmouseover = function()	{
					this.className = 'over';
				}
				node.onmouseout = function()	{
					this.className = '';
				}
			}

		}
	}
}