function $(objectId) { 
     if(document.getElementById && document.getElementById(objectId)) { 
    // W3C DOM 
       return document.getElementById(objectId); 
     }  
     else if (document.all && document.all(objectId)) { 
    // MSIE 4 DOM 
       return document.all(objectId); 
     }  
     else if (document.layers && document.layers[objectId]) { 
    // NN 4 DOM.. note: this won't find nested layers 
       return document.layers[objectId]; 
     }  
     else { 
       return false; 
    } 
}
//查找网页内宽度太大的图片进行缩放以及PNG纠正
 function ReImgSize(){
  for (i=0;i<document.images.length;i++)
   {
   if (document.all){
	if (document.images[i].width>500)
	 {
	   var oWidth=document.images[i].width;
       var oHeight=document.images[i].height;
       document.images[i].width="500";
       document.images[i].height=oHeight*500/oWidth;
       document.images[i].outerHTML='<a href="'+document.images[i].src+'" target="_blank" title="在新窗口打开图片">'+document.images[i].outerHTML+'</a>'
  	 }
   }
  else{
	if (document.images[i].width>500) {
	   var oWidth=document.images[i].width;
       var oHeight=document.images[i].height;
       document.images[i].width="500";
       document.images[i].height=oHeight*500/oWidth;
	  document.images[i].title="在新窗口打开图片";
	  document.images[i].style.cursor="pointer"
	  document.images[i].onclick=function(e){window.open(this.src)}
	}
  }
  }
 }
//让Mozilla支持innerText
try{
	HTMLElement.prototype.__defineGetter__
	(
	"innerText",
	function ()
	{
		var anyString = "";

		var childS = this.childNodes;
			for(var i=0; i<childS.length; i++)
			{
				if(childS[i].nodeType==1)
				anyString += childS[i].tagName=="BR" ? '\n' : childS[i].innerText;
				else if(childS[i].nodeType==3)
				anyString += childS[i].nodeValue;
			}
			return anyString;
	}
	); 
}
catch(e){}
var currentpos,timer;
function initialize()
{
timer=setInterval("scrollwindow()",50);
}
function sc(){
clearInterval(timer);
}