//CassiesClub common javascript functions 


function jumpPage(num)
{
        if(isNotBlank(num) && isWholeNumber(num))
        {
	    url = "Club" + num + ".shtml";
	    document.location.href=url;
        }
        else {
          alert("Please enter a page number to view that page.");
        }
}

function isNotBlank(num)
{
   if(num.length == 0)
   {
     return false;
   }
   return true;
}

function isWholeNumber(text)
{
  var validChars = "01234567890";
  var someChar;
  var isNumber = true;

  for(i=0; i < text.length && isNumber == true; i++)
  {
    someChar = text.charAt(i);
    if(validChars.indexOf(someChar) == -1)
    {
      isNumber = false;
    }
  }
return isNumber;
}