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Need numeric validation for a field in a form

P: 9
i need to validate the form .. fields should not be empty is justified... but the last field i.e var z should be numeric ..please reply fast

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  1. function validateform()
  2. {
  3. var x=document.getElementById("nameid").value;
  4. if(x==''){alert("name should not be empty");return false;}
  5. var y=document.getElementById("qualificationid").value ;
  6. if(y==''){alert("qualification should not be empty");return false;}
  7. var z=document.getElementById("rollnumid").value;
  8. if(z==''){alert("rollnum should not be empty");return false;}
  9. }
Aug 16 '12 #1
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2 Replies

Expert Mod 5K+
P: 5,390
you might use the isNaN method for that check
Aug 16 '12 #2

ariful alam
P: 185
@satyasampan, you should have a look @ the following link

Hope works for you. :)
Aug 16 '12 #3

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