Solved

SSN SHIFT+TAB Problem

Posted on 2006-07-03
1
888 Views
Last Modified: 2012-06-27
Hi,

I am using this javascript code for auto tab in my SSN


<body>
<form name=blahForm>
Enter your SSN:<br>
<input type=text name=first size=3 maxlength=3 onkeyup='if (this.value.length == 3) {blahForm.middle.focus();blahForm.middle.select()}'>-
<input type=text name=middle size=2 maxlength=2 onkeyup='if (this.value.length == 2) {blahForm.last.focus();blahForm.last.select()}'>-
<input type=text name=last size=4 maxlength=4>
</form>
</body>
</html>

Problem
--------
while I want to change the value in SSN by clicking  SHIFT+TAB it again go to next part

Thanks
0
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Question by:SystemExpert
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1 Comment
 
LVL 15

Accepted Solution

by:
bpmurray earned 500 total points
ID: 17030922
You can so something like this:
<html><head>
<script type="text/javascript">
function doKeyup(elem, evt) {
   var Fld = elem;
   if (evt.shiftKey && evt.which == 9) {
      Fld = elem.previousSibling.previousSibling;
   } else if (elem.size <= elem.value.length) {
       Fld = elem.nextSibling.nextSibling;
   }
   Fld.focus();
   Fld.select();
}
</script>
<body>
<form name=blahForm>
Enter your SSN:<br>
<input type="text" name="first" size="3" maxlength="3" onkeyup="doKeyup(this, event);">-
<input type="text" name="middle" size="2" maxlength="2" onkeyup="doKeyup(this, event);">-
<input type="text" name="last" size="4" maxlength="4">
</form>
</body>
</html>

But that's way too complicated for what you need. Simply set tabindex="1", "2" and "3" on the three fields, and the tab and shift-tab will work as you expect.
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