Asp.Net常用js（六）

<input name="rulesubmit" id="agree" class="button" type="submit" value="我已阅读并同意以上条款">&nbsp;&nbsp;&nbsp;&nbsp;<input type="button" name="return" class="button" value="不同意" onclick="javascript:window.location='/opencms/index.html';"></div>
</form>
<script language="javascript">
    var secs = 10;
    var wait = secs * 1000;
    document.bbrules.rulesubmit.value = "我已阅读并同意以上条款 (" + secs + ")";
    document.bbrules.rulesubmit.disabled = true;
    for(i = 1; i <= secs; i++) {
            window.setTimeout("update(" + i + ")", i * 1000);
    }
        
    window.setTimeout("timerrun()", wait);
    function update(num, value) {
            if(num == (wait/1000)) {
                    document.bbrules.rulesubmit.value = "我已阅读并同意以上条款";
            } else {
                    printnr = (wait / 1000)-num;
                    document.bbrules.rulesubmit.value = "我已阅读并同意以上条款 (" + printnr + ")";
            }
    }
        function timerrun() {
            document.bbrules.rulesubmit.disabled = false;
            document.bbrules.rulesubmit.value = "我已阅读并同意以上条款";
    }
</script>

<script   language=javascript>   
  window.onbeforeunload   =   function()   
  {   
      if(event.clientX>document.body.clientWidth&&event.clientY<0||event.altKey)   
      {   
          window.event.returnValue   =   "";   
          //your   code   
      }   
  }   
  </script>