function checkemail(strMail){ 
  var emailFilter=/^.+@.+\..{2,3}$/;            
  if (!(emailFilter.test(strMail))) return false;
  else return true;
}
function IsPhoneNumber(sText)
{
    var ValidChars = "012345678#+-";
    var IsPhoneNumber=true;
    var Char;

    for (i = 0; i < sText.length && IsPhoneNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsPhoneNumber = false;
         }
      }
    return IsPhoneNumber;
}