js獲取元素的屬性值

 

 
          <! 
          DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" 
          >  
          
 
          < 
          html  
          xmlns 
          ="http://www.w3.org/1999/xhtml" 
          >  
          
 
          < 
          head 
          >  
          
 
          < 
          title 
          >獲取元素屬性 
          </ 
          title 
          >  
          
 
          </ 
          head 
          >  
          
 
          < 
          body 
          >  
          
 
          < 
          div  
          id 
          ="roboth" 
          ></ 
          div 
          >  
          
 
          <div id="test"></div>  
         

< script  type ="text/javascript" >  

 

<!--獲取屬性-->

var div=document.getElementById("roboth"); 
alert(div.attributes.getNamedItem("id").nodeValue); 
alert(div.attributes.item(0).nodeValue); 
alert(div.getAttributeNode("id").nodeValue); 
alert(div.getAttribute("id"));

 

<!--添加屬性-->

document.getElementById("test").attachEvent("onclick",func);

 
          </ 
          script 
          >  
          
 
          </ 
          body 
          >  
          
 
          </ 
          html 
          >