Numeric Form Validation

[stan8450]

I have a number of validations in sequence for a form named 'orderform'. I would like the user to only be able to enter in a numeric value in a text box named 'house_size'.


any help appreciated

 

[trollacious]

function validatehousesize()
{
if (isNaN(document.orderform.house_size))
{
alert('Numbers only');
return false;
}
return true;
}

 

[adam0101]

To automatically strip characters you don't want use:

<input type=&quot;text&quot; onblur=&quot;this.value=numsOnly(this.value)&quot;>

function numsOnly(str){
  var output='',chars='0123456789.'
  for(i=0;i<str.length;i++{
    if(chars.indexOf(str.charAt(i))>-1){
      output+=str.charAt(i)
    }
  }
  return output;
}

 

[jemminger]

don't you just love regular expressions?

function stripNonNums(str) {
return str.replace(/\D/gi,""
}

=========================================================
if (!succeed) try();
-jeff

 

[stan8450]

thanks for your help everyone