window.onload=function(){
	/*document.body.attachEvent("oncontextmenu",function(){return false;});
	document.body.attachEvent("onselectstart",function(){return false;});	
	document.body.attachEvent("ondragstart",function(){return false;});	
	document.body.attachEvent("onbeforecopy",function(){return false;});
	document.body.attachEvent("oncopy",function(){document.selection.empty();});
	document.body.attachEvent("onselect",function(){document.selection.empty();});*/
}
function SwitchMenu(){
		var obj = event.srcElement;
		while(obj=obj.parentNode){
			if(obj.tagName.toLowerCase()=="li"){
				break;
			}
		}
		var rNode = obj.nextSibling
		if(rNode.style.display==""){
			obj.id = "LeftNav_Normal_Board";
			rNode.style.display="none";			
		}else{			
			obj.id = "LeftNav_Normal_BoardOpen";
			rNode.style.display="";
		}
	}
function SwitchSubMenu(){
		var obj = event.srcElement;
		while(obj=obj.parentNode){
			if(obj.tagName.toLowerCase()=="li"){
				break;
			}
		}
		var rNode = obj.nextSibling
		if(rNode.style.display==""){
			obj.id = "SubliTwo";
			rNode.style.display="none";			
		}else{			
			obj.id = "Subli";
			rNode.style.display="";
		}
	}