JavaScript - writing value into html form from script

Question

I was wondering how I could input a value into a form with html. So right when the user goes to the site there\'s numbers in the text boxes already and they use those number

Answer 1

To have numbers in input fields you can set them to have a value, like value="10" and the default value would be 10 until the user changes it.

Answer 2

<input type="text" id="answer" value="5" >

or

document.getElementById("answer").value = "5";

Answer 3

well you can put this script after the form is created:

<form name="addition" action="" method="get">
            <table border="1">
                     <tr>
                 <td>Value 1:</td> <td><input type="text" name="value1" id="value1"/></td>
                         </tr>
                     <tr>
                 <td>Value 2:</td> <td><input type="text" name="value2" id="value2"/></td>
                         </tr>
                     <tr>
                 <td>Answer:</td> <td><input type="text" id="answer" /></td>
                         </tr>
                     <tr><td><input type="button" value="Submit" onClick="addSubmit()" id="submit" /></td><td><input type="button" value="Give Up" onClick="addGiveUp()" /></td></tr>
                     </table>
</form>

<!-- This is the script-->
 <script type="text/javascript">
      document.getElementById("value1").value = Math.floor(89+Math.random()*11);
      document.getElementById("value2").value = Math.floor(89+Math.random()*11);​
  </script>

That would generate random numbers for you and put them in the form See here for the code: http://jsfiddle.net/wVAFt/