function categoryNavInit()	{
	if (document.getElementById)	{
		
		var categoryUL = document.getElementById('category-nav');
		listProcess(categoryUL);
		
	}
}

function listProcess(list)	{
	
	for(var i=0;i<list.childNodes.length;i++)	{
		
		if (list.childNodes[i].nodeName == 'LI')	{
			
			var node = list.childNodes[i];
			
			node.onmouseover = function()	{
				this.className += ' over';
			}
			
			node.onmouseout = function()	{
				var classArray = this.className.split(' ');
				this.className = classArray[0];
			}
			
			for (var p = 0;p<node.childNodes.length;p++)	{
				
				if (node.childNodes[p].nodeName == 'UL')	{
				
					listProcess(node.childNodes[p]);
				
				}
				
			}
		
		}
		
	}
		
}