/* ---------------------------------------------------------------------------

Basic Form Validation - 16 April 2007

--------------------------------------------------------------------------- */


/* ---------------------------------------------------------------------------
NUMBER 
--------------------------------------------------------------------------- */

function validateNumber(field, msg, min, max) { 

if (!min) { min = 0 } 
if (!max) { max = 255 } 

if ( (parseInt(field.value) != field.value) || field.value.length < min || field.value.length > max) { 

alert(msg); 
field.focus(); 
field.select(); 

return false; 

} 

return true; 

}

/* ---------------------------------------------------------------------------
STRING 
--------------------------------------------------------------------------- */

function validateString(field, msg, min, max) { 
if (!min) { min = 1 } 
if (!max) { max = 65535 } 

if (!field.value || field.value.length < min || field.value.max > max) { 

alert(msg); 
field.focus(); 
field.select(); 

return false; 
}

return true; 
}

/* ---------------------------------------------------------------------------
STRING DROPDOWN
--------------------------------------------------------------------------- */

function validateStringDropdown(field, msg, min, max) { 
if (!min) { min = 1 } 
if (!max) { max = 65535 } 

if (!field.value || field.value.length < min || field.value.max > max) { 

alert(msg); 
field.focus();

return false; 
}

return true; 
}

/* ---------------------------------------------------------------------------
EMAIL 
--------------------------------------------------------------------------- */

function validateEmail(email, msg, optional) { 
if (!email.value && optional) { 

return true; 
} 

var re_mail = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z])+$/; 

if (!re_mail.test(email.value)) { 

alert(msg); 
email.focus(); 
email.select(); 

return false; 
} 

return true; 
}