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我试图进行倒计时，当完成重定向到另一个 url 时（即使我不在页面上，我想重定向到的这个页面，做某事）然后重置倒计时。

这是倒计时：

<HTML>
<HEAD>
<TITLE>Countdown</TITLE>
<SCRIPT LANGUAGE="JavaScript">

var eventdate = new Date("May 19, 2013 21:00:00");

function toSt(n) {
 s=""
 if(n<10) s+="0"
 return s+n.toString();
}

function countdown() {
 cl=document.clock;
 d=new Date();
 count=Math.floor((eventdate.getTime()-d.getTime())/1000);
 if(count<=0)
   {cl.hours.value="--";
    cl.mins.value="--";
    cl.secs.value="--";
    return;
  }
 cl.secs.value=toSt(count%60);
 count=Math.floor(count/60);
 cl.mins.value=toSt(count%60);
 count=Math.floor(count/60);
 cl.hours.value=count;    

 setTimeout("countdown()",500);
}
// end hiding script-->
</SCRIPT>
</HEAD>

<BODY  onLoad="countdown()">

<FONT FACE="arial, helvetica" SIZE="-1">
<CENTER>
<P>
<FORM name="clock">
         <TD ALIGN=CENTER><INPUT name="hours" size=0></TD> :
         <TD ALIGN=CENTER><INPUT name="mins" size=0></TD> :
         <TD ALIGN=CENTER><INPUT name="secs" size=0></TD>   
         <TD ALIGN=CENTER><B>Hours</B></TD>  
</FORM>
</CENTER>
</BODY>
</HTML>

我尝试过这样的事情：

    if(count=0){<META HTTP-EQUIV="refresh" CONTENT="0;URL=http://www.example.com/">}

但它需要插入到 HEAD 中，它只是重定向 请帮助我...您可以在 php、html 或任何可以使用的语言中执行此操作。

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1 回答 1

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For example i want to send a mail every 7 days. i have the page that does it. it just need to be clicked. so when countdown finishes it clicks that and resets the countdown back to 7 days.

I would use Cron Jobs to do that instead of a Jquery code.

But, anyways, in regards of what you were asking, the redirecting stuff, you could use the following code which doesn't need to be placed in <head>

if(count == 0){
    window.location.href="http://example.com";
}
于 2013-06-01T07:41:24.667 回答