如何將一個JS函數的輸出返回到一個HTML按鈕'id'

我有一個html頁面，需要存儲按鈕點擊數據庫時的時間。我有一個計算時間的JS函數。但不知怎麼的，html按鈕沒有保存這個值。這裏是代碼。如何將一個JS函數的輸出返回到一個HTML按鈕'id'

<html> 
    <head> 
    <script>   

function checkTime(i) 
{ 
    if (i<10) 
{ 
     i="0" + i; 
    } 
    return i; 
     } 
function checkMsec(j) 
{ 
     if ((j<100) && (j<10)) 
     { 
     j="00" + j; 
    } 
     if ((j<100) && (j>10)) 
     { 
    j="0" + j; 
     } 
     return j; 
     } 
    function timeCheck(stTime) 
     { 
    var currentTime=new Date(); 
    var cDat = currentTime.getDate(); 
     var cMon = currentTime.getMonth() + 1; 
     var cYear = currentTime.getFullYear(); 
     var h = currentTime.getHours(); 
     var m = currentTime.getMinutes(); 
     var s = currentTime.getSeconds(); 
    var ms = currentTime.getMilliseconds(); 

     m = checkTime(m); 
     s = checkTime(s); 
     ms = checkTime(ms); 
     stTime = cDat+"-"+cMon+"-"+cYear+" "+h+":"+m+":"+s+":"+ms; 
     //alert(stTime); // this is displaying the time as an alert 
     return stTime; //Here I am expecting the id attribute of the button will have the stTime 

     } 
    </script> 
    </head> 
    <body> 
<form name ="frm1" method ="POST" action="<% gait_url %>"> 

    <p>Time 1: <input type="button" name=start1 value= "Start" id="start1" onClick ="timeCheck(this)"> 

    <input type="button" name=stop1 id="stop1" value= "Stop" onClick ="timeCheck(this)"></p> 

    <p>Time 2: <input type="button" name=start2 value= "Start" id="start2" onClick ="timeCheck(this)"> 

    <input type="button" name=stop2 id="stop2" value= "Stop" onClick ="timeCheck(this)"> </p> 

<input type="submit" value="Back to Menu" name="Back to Menu"> 

</form> 

    </body> 
    </html>

來源

2014-02-24 user2838042

返回值轉到對象的事件方法，而不是對象屬性「id」。

更改此

stTime = cDat+"-"+cMon+"-"+cYear+" "+h+":"+m+":"+s+":"+ms; 
//alert(stTime); // this is displaying the time as an alert 
return stTime; //Here I am expecting the id attribute of the button will have the stTime

到

stTime.id = cDat+"-"+cMon+"-"+cYear+" "+h+":"+m+":"+s+":"+ms;

來源

2014-02-24 12:06:08 LGSon

如何將一個JS函數的輸出返回到一個HTML按鈕'id'

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