/*
 *          file: validation_scripts.js
 * 
 *   description: javascript function which allows only numbers to be entered in a 
 * textbox
 */
function noAlpha(e)
{
	if(e.keyCode < 48 || e.keyCode > 57)
	{
		return false;
	}
}
/*
 * javascript function which does not allow any number to be entered in a 
 * textbox
 */
function noNumbers(e)
{
	if(e.keyCode >= 48 || e.keyCode <= 57)
	{
		return false;
	}
}
/*
 * javascript function which validates the phone number
 */
function validatePhone(evt)
{
   var charCode = (evt.which) ? evt.which : event.keyCode
   if (charCode == 43 || (charCode >= 48 && charCode <= 57) || charCode == 8 || charCode == 32
     || charCode == 40 || charCode == 41)
   return true;
   return false; 
}
/*
 * javascript function which validates the number fields
 */
function validateNumber(evt)
{
   var charCode = (evt.which) ? evt.which : event.keyCode
   if (charCode >= 48 && charCode <= 57 || charCode == 8 || charCode == 43)
   return true;
   return false;
}
/*
 * javascript function which validates the amount fields
 */
function validateAmount(evt)
{
   var charCode = (evt.which) ? evt.which : event.keyCode
   if (charCode >= 48 && charCode <= 57 || charCode == 8 || charCode == 46)
   return true;
   return false;
}
/*
 * javascript function which allows only alphabets A-Z and a-z 
 * to be entered in a textbox
 */
function onlyAlpha(e)
{
	if(e.keyCode >= 97 && e.keyCode <= 122)
	{
		return true;
	}
	else if (e.keyCode >= 65 && e.keyCode <= 90)
	{
		return true;
	}
	else
	{
		return false;
	}
}