Validation of Forms

[Paddy Joshi]

Hi,
I want to validate a form. In which i need to validate if user entered text where number is required. i come to know about isNaN () method. but it will validate floating numbers also and i want integers only. moreover how can i enable a text input only when checkbox is enabled
what i did was ( for number validation)

function IsNumeric()
{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char; 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         alert("please enter the number");
         }
      }     
   }

please help me with this ... thnks in advance ...

[Prasad Krishnegowda]

You can try using regular expressions..

[Prasad Krishnegowda]

Paddy Joshi wrote:how can i enable a text input only when checkbox is enabled

On click of the checkbox, call one function, based on the value you get from checkbox(whether its checked or unchecked), enable/disable a text box. What difficulty are you facing here?

[Seetharaman Venkatasamy]

your logic looks fine for me except .(dot) in your string . remove that!

var ValidChars = "0123456789.";