/****tab menu****/
function $t(){}
$t.prototype = {
	$do : function(menus,divs,openClass,closeClass){
		var _this = this;
		if(menus.length != divs.length)
		{alert("菜单层数量和内容层数量不一致!");
			return false;}				
		for(var i = 0 ; i < menus.length ; i++)
		{	_this.$(menus[i]).value = i;
		
			_this.$(menus[i]).onmouseover = function(){
				for(var j = 0 ; j < menus.length ; j++)
				{	_this.$(menus[j]).className = closeClass[j];
					_this.$(divs[j]).style.display = "none";}
					
				_this.$(menus[this.value]).className = openClass[this.value];
				
				_this.$(divs[this.value]).style.display = "block";				
			}}},
	$ : function(oid){	if(typeof(oid) == "string")
		return document.getElementById(oid);
		return oid;	}
		}		
		

window.onload = function(){
	var $tabs = new $t();

	$tabs.$do(["a1","a2","a3","a4"],["b1","b2","b3","b4"],["tab1","tab1","tab1","tab1"],["tab2","tab2","tab2","tab2"]);
	$tabs.$do(["c1","c2","c3","c4","c5"],["d1","d2","d3","d4","d5"],["tab1","tab1","tab1","tab1","tab1"],["tab2","tab2","tab2","tab2","tab2"]);
	$tabs.$do(["e1","e2","e3"],["f1","f2","f3"],["tab1","tab1","tab1"],["tab2","tab2","tab2"]);
//	$tabs.$do(["e1","e2","e3","e4"],["f1","f2","f3","f4"],["tab1","tab1","tab1","tab1"],["tab2","tab2","tab2","tab2"]);
	//$tabs.$do(["g1","g2","g3","g4"],["h1","h2","h3","h4"],["tab1_1","tab2_1","tab3_1","tab4_1"],["tab1_2","tab2_2","tab3_2","tab4_2"]);
	//$tabs.$do(["i1","i2"],["j1","j2"],["tab1","tab1"],["tab2","tab2"]);
	//$tabs.$do(["k1","k2"],["l1","l2"],["tab1","tab1"],["tab2","tab2"]);
	$tabs.$do(["o1","o2","o3"],["p1","p2","p3"],["tab11","tab11","tab11"],["tab22","tab22","tab22"]);
}