function isAlphaNum( input )
{
if ( isAlphabet(input) )
{
if ( isNumber(input) )
{
return false;
}
else
{
return true;
}
}
else
{
return true;
}
}
function isAlphabet( input )
{
var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
return containsChars( input, chars );
}
function isNumber( input )
{
var chars = "0123456789";
return containsChars(input,chars);
}