// JavaScript Document
//用于打开新窗口
function externallinks() { 
if (!document.getElementsByTagName) return; 
var anchors = document.getElementsByTagName("a"); 
for (var i=0; i<anchors.length; i++) { 
   var anchor = anchors[i]; 
   if (anchor.getAttribute("href") && 
       anchor.getAttribute("rel") == "external") 
     anchor.target = "_blank"; 
} 
} 
window.onload = externallinks;
//用于首页底部导航变换 
function ADMenu(id)
 {
		 for(var i=1;i<=8;i++)
		 {
		 document.getElementById('for_ta_t_'+i).style.display='none'
		 document.getElementById('ta_t_'+i).className='unactive';
 		 }
	 document.getElementById('for_ta_t_'+id).style.display='';
	 document.getElementById('ta_t_'+id).className='active';
  }
 //用于首页鼠标变换栏目  
function selectTag(showContent,selfObj,ulid,dividvalue){
	var tag = document.getElementById(ulid).getElementsByTagName("li");
	var taglength = tag.length;
	for(i=0; i<taglength; i++){
		tag[i].className = "unfocu";
	}
	selfObj.className = "focu";
	for(i=0; j=document.getElementById(dividvalue+i); i++){
		j.style.display = "none";
	}
	document.getElementById(showContent).style.display = "block";
}


//用于导航
//用于导航
function $(id) {
    return document.getElementById(id);
}
function showMenu (baseID, divID) {
    baseID = $(baseID);
    divID  = $(divID);

    //var l = GetOffsetLeft(baseID);
    //var t = GetOffsetTop(baseID);

    //divID.style.left = l + 'px';
//    divID.style.top = t + baseID.offsetHeight + 'px';
    if (showMenu.timer) clearTimeout(showMenu.timer);
	hideCur();
    divID.style.display = 'block';
	showMenu.cur = divID;

    if (! divID.isCreate) {
        divID.isCreate = true;
        //divID.timer = 0;
        divID.onmouseover = function () {
            if (showMenu.timer) clearTimeout(showMenu.timer);
			hideCur();
            divID.style.display = 'block';
        };

        function hide () {
            showMenu.timer = setTimeout(function () {divID.style.display = 'none';}, 1000);
        }

        divID.onmouseout = hide;
        baseID.onmouseout = hide;
    }
	function hideCur () {
		showMenu.cur && (showMenu.cur.style.display = 'none');
	}
}