//自动转行函数, encStr为实体转换后的字符串,如abc":ds'<!!!!!?>/\@#$%
function insertWbr(encStr,len)
{
	var ta=document.createElement('textarea');
	ta.innerHTML=encStr;
	document.body.appendChild(ta);

	var rsStr=ta.value;	
	rsStr=rsStr.replace(new RegExp("(\\S{" + len + "})", "img"), "$1<wbr>");
	document.body.removeChild(ta);
	rsStr=rsStr.replace(/<wbr>/g,"\u0001");
	rsStr=rsStr.replace(/</g,"&lt;");
	rsStr=rsStr.replace(/>/g,"&gt;");
	rsStr=rsStr.replace(/\u0001/g,"<wbr>");
	
	return rsStr;
}

function JsLoader(){
   this.load=function(url){
   var ss=document.getElementsByTagName("script");  
   for(i=0;i<ss.length;i++)
   {   
     if(ss[i].src && ss[i].src.indexOf(url)!=-1)
     {   
       this.onsuccess(); 
       return;   
     }
   } 
   s=document.createElement("script");  
   s.type="text/javascript";  
   s.src=url;
   var head=document.getElementsByTagName("head")[0];  
   head.appendChild(s);  
   var self=this; 
   s.onload=s.onreadystatechange=function()
   {      
   if(this.readyState && this.readyState=="loading")
     return;   
     self.onsuccess();  
   }
   s.onerror=function(){ 
   head.removeChild(s);   
   self.onfailure(); 
    } 
   };

   this.onsuccess=function(){}; 
   this.onfailure=function(){};  
}