navidropdown = {
	init : function(){
		document.write('<div id="dropdownNavi"></div>');
		this.dd = document.getElementById('dropdownNavi');
		var dom = document.getElementById('nav').getElementsByTagName('li');
		var lis = [];
		for(i in dom){
			if(isNaN(i)){continue;}
			if(dom[i].className=="level2" && dom[i].tagName.toLowerCase()=="li" && dom[i].getElementsByTagName('div')[0]){
				lis[lis.length] = dom[i];
			}
		}

		for(i=0;i<lis.length;i++){
			lis[i].onmouseover = function(){
				var dropdown = this.getElementsByTagName('div')[0];
				navidropdown.dd.innerHTML = dropdown.innerHTML;
				navidropdown.dd.style.display = 'block';
				navidropdown.dd.style.marginLeft = this.offsetLeft+5+"px";
				navidropdown.dd.getElementsByTagName('a')[0].onmouseout = function(){
					navidropdown.dd.style.display = 'none';
				}
			}
		}
	}
}
navidropdown.init();