JavaScript Reference/Javascript Properties/defaultValue

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"defaultValue" Example

   <source lang="javascript">

<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> 


     </source>


"defaultValue" is applied to

   <source lang="javascript">

+----------------+--------------------------------------------------------------+ | 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> | +----------------+--------------------------------------------------------------+ 

     </source>


"defaultValue" Syntax and Note

   <source lang="javascript">

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 


     </source>
Источник — «http://wbex.ru/index.php?title=JavaScript_Reference/Javascript_Properties/defaultValue&oldid=6933»