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Posted By

krisdb on 03/29/07


Tagged

javascript


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luman
vali29


quick and dirty form validator

Published in: JavaScript 

Plain TextExpand 
  1. <form name="frm" id="frm" onsubmit="return validateFrm(this.name,'#fff8dc','Please enter all required fields');">
  2. <input type="text" name="fieldName" id="required" size="20" /> 
  3. <input type="submit" value="Submit" />
  4. </form>
  5.  
  6. <script language="javascript" type="text/javascript">
  7. function validateFrm(sFrm,sFieldColor,sErrMsg) {
  8.     var frm = document.getElementById(sFrm);
  9.     var bFailed = false;
  10.     var iFocus = -1
  11.  
  12.     for (var i=0;i<frm.length;i++) {
  13.         if (frm.elements[i].id == 'required')
  14.             frm.elements[i].style.background = '#fff';
  15.     }
  16.  
  17.     for (var i=0;i<frm.length;i++) {
  18.         if (frm.elements[i].id == 'required' && frm.elements[i].value == '') {
  19.  
  20.             if (iFocus == -1)
  21.                 iFocus = i;
  22.  
  23.             frm.elements[i].style.background = sFieldColor;
  24.             bFailed = true;
  25.         }
  26.  
  27.     }
  28.  
  29.     if (bFailed == true) {
  30.         frm.elements[iFocus].focus();
  31.         alert(sErrMsg);
  32.         return false;
  33.     }
  34. }
  35. </script>

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Posted By: krisdb on March 30, 2007

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