var theDate=new Date(2010,10,20,8,0,0); 
function getTheTime(){ 
var date = new Date(); 
var diffTime = theDate - date; 
var para = 1000 * 60 * 60 * 24; 
var diffday = diffTime / para; 
var diffHour = (diffTime % para) / 3600000; 
var diffMinute = (diffTime % 3600000 ) / 60000; 
var diffSecond = (diffTime % 60000) / 1000; 
document.getElementById("diffDay1").innerHTML = Math.floor(diffday)-30; 
//document.getElementById("diffDay1").innerHTML = Math.floor(diffday)*24; 
} 
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/*第一种形式 第二种形式 更换显示样式*/
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  var con=document.getElementById("con_"+name+"_"+i);
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}
//-->