function vTabs(thisObj,Num){
if(thisObj.className == "active")return;
var tabObj = thisObj.parentNode.id;
var tabList = document.getElementById(tabObj).getElementsByTagName("li");
for(i=0; i <tabList.length; i++)
{
  if (i == Num)
  {
   thisObj.className = "active"; 
      document.getElementById(tabObj+"_Content"+i).style.display = "block";
  }else{
   tabList[i].className = "normal"; 
   document.getElementById(tabObj+"_Content"+i).style.display = "none";
  }
} 
}

        function SetTab(tab,id){
            var menus=document.getElementById(tab).getElementsByTagName("li");            
	        for(i=0;i<5;i++){	       
	            i==id?menus[i].className="on":menus[i].className="";
	            
	            //控制螺纹钢DIV层的显示
	            i==id?document.getElementById(tab+"-content"+i).className="block":document.getElementById(tab+"-content"+i).className="none";
	            
	            //初始化显示第一个类别
	            if(i==id){
	                var divContent=document.getElementById(tab+"-content"+i);
	                var lis=divContent.getElementsByTagName("li");
	                lis[0].className = "active";
	                for(var j=1;j<lis.length;j++){
	                    lis[j].className = "normal";
	                }
	            }
            }
	    }

var beforeTab;
var beforeTab1;
var oldObj=null;//上一次选择的选项卡

/**
 * 改变选项卡样式
 * @param thisObj LI对象
 * @param Num 
 * @param tableid 显示DIV的ID
 */
function nTabs(thisObj,Num,tableid){
    //忽略重复操作
    if(oldObj!=null && oldObj==tableid){
        return;
    }else{
        oldObj=tableid;
    }
	
	//高亮本次选择的选项卡
	var tabObj = thisObj.parentNode.id;
	var tabList = document.getElementById(tabObj).getElementsByTagName("li");
	for(i=0; i <tabList.length; i++){
        if (i == Num){
            thisObj.className = "active";
        }else{
            tabList[i].className = "normal";
        }
	}
	
	//设置显示内容
	var show = document.frames('info').document;
	var tab = show.getElementsByName(tableid);
	
	//显示所选择的产品DIV
	if(tab.length==2){
	    tab[0].style.display="block";
	    tab[1].style.display="block";
	}	
	
	//隐藏上一个DIV
	if(beforeTab!=null){
		beforeTab.style.display="none";		
		beforeTab2.style.display="none";		
	}else{
		var show1 = show.getElementsByName("show1");
		show1[0].style.display="none";
		show1[1].style.display="none";		
	}
	
	//保存本次的选择DIV
	if(tab.length==2){
	    beforeTab = tab[0];
	    beforeTab2 = tab[1];
	}else{
	    beforeTab = null;
	    beforeTab2 = null;
	}
}