js javascript 设置页面背景色,设置背景图片

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    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">      <HTML>       <HEAD>        <TITLE> New Document </TITLE>        <META NAME="Generator" CONTENT="EditPlus">        <META NAME="Author" CONTENT="">        <META NAME="Keywords" CONTENT="">        <META NAME="Description" CONTENT="">      <SCRIPT   LANGUAGE=javascript>        function update(temp)      {          if(temp == 'color')          {              document.body.style.backgroundColor="#FFFFFF";//改变背景色          }          if(temp == 'img')          {              document.body.style.backgroundImage="url(http://www.iteye.com/upload/logo/user/37073/648c9ed4-f54b-3f4a-ac54-905f5a483307.gif?1236833802)"; //改变背景图片          }      }        </SCRIPT>             </HEAD>             <BODY bgcolor="#CCFFFF">        <input type = button value="改变背景色" onclick="update('color')">        <input type = button value="改变背景图片" onclick="update('img')">       </BODY>              </HTML>

转自 http://heisetoufa.iteye.com/blog/397305