将eval和span id从gridview传递到javascript函数

Question

I'm trying to pass a value and span id to a JavaScript function. I think I have the value set right but I'm having problems passing the span. This is a nested gridview so I can't see the control and need to send it to the function.

In GridView

 <input type="button" onclick='<%# Eval("FormulaTiming", "countdown({0}); Eval("TimeMinutes.ClientID")%>' value="Start" id="Start" />
 <input type="button" value="Stop" id="Stop" />
 <input type="text" value='<%#Eval("FormulaTiming")%>' id="TimeMinutes" />
 <span id="CountDown"></span>

JavaScript Function

var interval;

  function countdown(minutes, spanid) {
      interval = setInterval(function () {
          var lbl = document.getElementById(element);
          if (seconds == 0) {
              if (minutes == 0) {
                  el.innerHTML = "countdown's over!";
                  clearInterval(interval);
                  return;
              } else {
                  minutes--;
                  seconds = 60;
              }
          }
          if (minutes > 0) {
              var minute_text = minutes + (minutes > 1 ? ' minutes' : ' minute');
          } else {
              var minute_text = '';
          }
          var second_text = seconds > 1 ? 'seconds' : 'second';
          el.innerHTML = minute_text + ' ' + seconds + ' ' + second_text + ' remaining';
          seconds--;
      }, 1000);
  }

I am still trying to figure out how to change the script, but first I need to pass the eval and span.

Thanks for your help

Answer 1

The following asp.net code

<input type="button" onclick='<%# Eval("FormulaTiming", "countdown({0}, \"Start\"); %>' value="Start" id="Start" />

Should yield the following HTML

<input type="button" onclick='countdown(20, "Start");' value="Start" id="Start" />