//NewsTab,頁籤切換使用
function tab(CategoryID,Index)
{    
    //change content
    var child = document.getElementById("news_ct").getElementsByTagName("div");
    for (var i=0; i<child.length; i++)
    {
        child[i].style.display="none";
    }    
    document.getElementById("news_ct"+Index).style.display="block";


    //change tab
    var li = document.getElementById("news_tab").getElementsByTagName("li");
    for (var i=0;i<li.length;i++)
    {    
        li[i].id="";
    }        
    li[Index].id="current";    
    
    //change more url 
    var a = document.getElementById("news_ft").getElementsByTagName("a");    
    a[1].href = document.getElementById("News_IndexPageTabAll1_HidMoreUrl").value+"&CategoryID=" + CategoryID;   
}