// JScript 文件
function switchmodTag(){
}
switchmodTag.prototype = {
	st : function(menus,divs,openClass,closeClass){
		var _this = this;
		if(menus.length != divs.length)
		{
			alert("菜单层和内容层数量不一样!");
			return false;
		}				
		for(var i = 0 ; i < menus.length ; i++)
		{	
			_this.$(menus[i]).value = i;				
			_this.$(menus[i]).onmouseover = function(){//此行onmouseover 可以改成onclick。
					
				for(var j = 0 ; j < menus.length ; j++)
				{						
					_this.$(menus[j]).className = closeClass;
					_this.$(divs[j]).style.display = "none";
				}
				_this.$(menus[this.value]).className = openClass;	
				_this.$(divs[this.value]).style.display = "block";				
			}
		}
		},
	$ : function(oid){
		if(typeof(oid) == "string")
		return document.getElementById(oid);
		return oid;
	}
}
window.onload = function(){
	var STmodel = new switchmodTag();
	STmodel.st(["a_1","a_2","a_3"],["c1_1","c1_2","c1_3"],"st01","st02");//第一组动滑轮
	STmodel.st(["b_1","b_2","b_3","b_4","b_5","b_6"],["d1_1","d1_2","d1_3","d1_4","d1_5","d1_6"],"st01","st02");//第二组动滑轮
	STmodel.st(["e_1","e_2","e_3"],["f1_1","f1_2","f1_3"],"st01","st02");//第三组动滑轮
	STmodel.st(["g_1","g_2"],["h1_1","h1_2"],"st01","st02");//第四组动滑轮
	//如需增加个数，请复制代码，ID命名规则如上即可。
}

<!--
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
//-->
   
function Show2(id,display){
				if(display==1)
					document.getElementById(id).style.display='block';
				else
					document.getElementById(id).style.display='none';
			}   

function killErrors() { 
return true; 
} 
window.onerror = killErrors; 
////统计
//document.writeln("<script src=\'http:\/\/w.cnzz.com\/c.php?id=30041729\' language=\'JavaScript\' charset=\'gb2312\'><\/script>")