//checks email
function checkemail(val)
{
	 var reg = new RegExp("^[0-9a-z_]+@[0-9a-z_^.]+\\.[a-z]{2,3}$", 'i');
	 if (!reg.test(val)) 
	 return false;
	 
	 return true;
}

//checks phone
function checkphone(val)
{
	 var reg = new RegExp("^[0-9]+([\.-]?[0-9]+)*$", 'i');
	 if (!reg.test(val)) 
	 return false;
	 
	 return true;
}

//checks zip(for USA)
function checkzip(val)
{
	 var reg = new RegExp("^[0-9]{5}$");
	 if (!reg.test(val)) 
	 return false;
	 
	 return true;
}