/*
-----------------------------------------------
Revision:   $Rev: 659 $
Updated:    $Date: 2009-10-05 02:09:14 -0400 (Mon, 05 Oct 2009) $
Author:     $Author: boyan $
-----------------------------------------------
*/
var applicationLogin = Class.create({
// Define the name of the css class that the script will look for
// and add enable/disable code for
enableOnEntrySelector: '[class="enableOnEntry"],.enableOnEntry',
setFocusClassName: 'setFocus',
formElements: '',
submitButton: '',
initialize: function() {
    // For each element that has the 'enableOnEntrySelector' defined,
    // loop over the form elements and store any text and password fields
    // Also save the id of the submit button and disable it
    $$(this.enableOnEntrySelector).each((function(e) {
        // Get all the form inputs and itterate through them
        $(e).getInputs().each((function(formElement) {
            // If the element has a class name that matches the 'setFocusClassName'
            if ($(formElement).hasClassName(this.setFocusClassName)) {
                // Activate the element
                $(formElement).activate();
            }

            // If the input is a text type or password type
            if ($(formElement).readAttribute('type') == 'text' || $(formElement).readAttribute('type') == 'password') {
                // Store the id of the element
                this.formElements += $(formElement).readAttribute('id') + ' ';

                // Add a keyup event handler to called the 'checkInput' function
                $(formElement).observe('keyup', this.checkInput.bind(this));
                $(formElement).observe('click', this.checkInput.bind(this));
            }
            // If the input is a submit type
            else if ($(formElement).readAttribute('type') == 'submit') {
                // Store the id of the submit button
                this.submitButton = $(formElement).id;
                // Disable the submit button
                $(this.submitButton).disabled = true;
            }
        }).bind(this));
    }).bind(this));
},
checkInput: function(event) {
    var emptyFeildsExist = false;

    // Itterate through the stored form elements
    $w(this.formElements).each((function(e) {
        // Check if the element value is empty
        if ($F(e).strip().empty()) {
            // It is empty, so break out of the loop
            emptyFeildsExist = true;
            $break;
        }
    }).bind(this));

    // If empty form fields do not exist, enable the submit button
    if (!emptyFeildsExist) $(this.submitButton).disabled = false;
    // Else, disable the submit button
    else $(this.submitButton).disabled = true;
} 
});

// Create an instance of the object after the page has loaded
document.observe("dom:loaded", function() {
  applicationLoginInstance = new applicationLogin();
});