function NumericOnly()
{
   // Allows numbers only and enter
   window.event.returnValue = (window.event.keyCode == 13 || (window.event.keyCode > 47 && window.event.keyCode < 58));
}

function NumbersOnly()
{
   NumericOnly();
   // Allows numbers only and enter
   //window.event.returnValue = (window.event.keyCode > 47 && window.event.keyCode < 58);
}

function PhoneOnly()
{
   // Allows numbers only and enter
   window.event.returnValue = (window.event.keyCode == 45 || (window.event.keyCode > 47 && window.event.keyCode < 58));
}

function DateOnly()
{
   // Allows numbers and /'s or hyphens and enter
   window.event.returnValue = ((window.event.keyCode == 13) || (window.event.keyCode > 46 && window.event.keyCode < 58));
}

function CurrencyOnly()
{
   // Allows numbers & periods ex: 100.56 
   window.event.returnValue = (window.event.keyCode == 13 || (window.event.keyCode > 47 && window.event.keyCode < 58) || (window.event.keyCode == 46))
   
}