JavaScript Reference/Javascript Properties/defaultValue
"defaultValue" Example
<html>
<body>
<script language="JavaScript">
function function1() {
var m = document.getElementById("myB").defaultValue;
alert("The value of this element is: "+"""+m+""");
}
</script>
<input id="myB" type="button" value="Click here" onclick="function1();">
</body>
</html>
"defaultValue" is applied to
+----------------+--------------------------------------------------------------+
| Applied_To |<input type="button"> <input type="checkbox"> |
| |<input type="file"> <input type="hidden"> |
| |<input type="image"> <input type="password"> |
| |<input type="radio"> <input type="reset"> |
| |<input type="submit"> <input type="text"> |
| |<textarea> |
+----------------+--------------------------------------------------------------+
"defaultValue" Syntax and Note
Note:
Read-only property.
Returns the content of the element when the page is loaded.
Syntax:
document.getElementById("elementID").defaultValue
document.all.elementID.defaultValue // IE only