使用javascript实现简单的选项卡切换

   
       
       
       

       

   
   
       

   
   

window.Onload=function(){
    tabs("tabs","mouseover");
}
function tabs(id,trigger){
    var tabBtn = document.getElementById(id).getElementsByTagName("h2")[0].getElementsByTagName("a");
    var tabsCOntent= document.getElementById(id).getElementsByTagName("p");
    for(var i=0;i         tabBtn[i].index = i;
        if(trigger=='mouseover'){
            tabBtn[i].Onmouseover=function(){
                clearClass();
                this.className="on";
                showContent(this.index);
            }
        }
        function showContent(n){
            for (var i=0; i                 tabsContent[i].index = i;
                tabsContent[i].className = "tabs-content_hide";
        }
        tabsContent[n].className="tabs-content";
    }
        function clearClass(){
            for(var i=0;i                 tabBtn[i].className="";
            }
        }
    }
}