var Menu = function(){}

Menu.prototype.showBlock = function(block_id){
	if(typeof(block = document.getElementById(block_id)) !== 'object'){
		return false;
	}
	block.style.display = block.style.display !== 'none' ? 'none' : 'block';
	return true;
}

Menu.prototype.clearCurrent = function(){
	if(!Wak.E('vmenu')){
		return false;
	}
	var nodes = document.getElementById('vmenu').getElementsByTagName('LI');
	for(var i = 0; i < nodes.length; i++){
			if(this.strpos(nodes[i].className, 'current') !== false){
				nodes[i].className = '';
			}
	}
}

Menu.prototype.strpos = function(haystack, needle, offset) {
		var i = (haystack+'').indexOf(needle, (offset ? offset : 0));
		return i === -1 ? false : i;
}