//marquee标准化
function getElementsByClass(searchClass,tagName)
{
 var classElements = new Array();
 if ( tagName == null )
  tagName = '*';
 var els = document.getElementsByTagName(tagName);
 var elsLen = els.length;
 var pattern = new RegExp("(^|\s)"+searchClass+"(\s|$)");
 for (i = 0, j = 0; i < elsLen; i++) {
  if ( pattern.test(els[i].className) ) {
   classElements[j] = els[i];
   j++;
  }
 } 
 return classElements;
}
 
function marquee(className){
 var a=getElementsByClass(className);
 for (i = 0; i < a.length; i++) {
  a[i].innerHTML="<marquee>"+ a[i].innerHTML+"</marquee>";
 }
}
window.onload = function () {
	marquee("marquee");
}



//弹出窗口标准化
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;