function init(ids,cons,dis){
   	document.getElementById(ids).getElementsByTagName('li')[0].className='active';
  	document.getElementById(cons).innerHTML=document.getElementById(dis+"l1").innerHTML;
	document.getElementById(ids).onmouseover=function(){onmousOver(ids,cons,dis);}//鼠标指向激发效果
  	document.getElementById(ids).onclick=function(){onmousOver(ids,cons,dis);}//点击激发效果
}
function onmousOver(ids,cons,dis){
	o = o || window.event;
	var obj=o.target || o.srcElement;
	if (obj.tagName=='LI'){
  		if (obj.className=='active'||obj.id=='more')
			return;
  		var o=document.getElementById(ids).getElementsByTagName('li');
  		for (var i=0;i<=o.length-1;i++){o[i].className='default'}
  			obj.className='active';
  		if (obj.className=='active'){
		document.getElementById(cons).innerHTML=document.getElementById(dis+obj.id).innerHTML;
		}
	}
}