/*
	Functions.js v 0.0.7
	A collection of useful mootools effects.
	ąęś
*/

// -------------------------------------------------Mootools Effects------------------------------------------------//

(function ($) {
	$(document).ready(function () {	
		$('body').prepend('<div id="fb-root"></div>');
	
		window.fbAsyncInit = function() {
			FB.init({
				appId: FACEBOOK_APP_ID, 
				status: true, 
				cookie: true,
		       	xfbml: true
		  	});
		};
	
		(function() {
			var e = document.createElement('script'); e.async = true;
	    	e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
	    	document.getElementById('fb-root').appendChild(e);
	  	}());
	});  	
}(jQuery));	


window.addEvent('domready', function() {
	
	$$('.opacity').each(function(el) {	
		op_start = 1; op_end = 0.5;
		el.set('opacity',op_start).addEvents({
			mouseenter: function() {
				this.set('tween', {duration: 200});
				this.tween('opacity',op_end);
			},
			mouseleave: function() {
				this.tween('opacity',op_start);
			}
		});	
	});
});

// -------------------------------------------------Class Manipulation------------------------------------------------//

if (typeof FM != 'object') {
    FM = new Object();
}

/**
 * Checks a given class attribute for the presence of a given class
 *
 * @author  Dan Delaney     http://fluidmind.org/
 * @param   element         DOM Element object (or element ID) to remove the class from
 * @param   nameOfClass     The name of the CSS class to check for
 */
FM.checkForClass = function(element, nameOfClass) {
    if (typeof element == 'string') { element = document.getElementById(element); }

    if (element.className == '') {
        return false;
    } else {
        return new RegExp('\\b' + nameOfClass + '\\b').test(element.className);
    }
}

/**
 * Adds a class to an element's class attribute
 *
 * @author  Dan Delaney     http://fluidmind.org/
 * @param   element         DOM Element object (or element ID) to add the class to
 * @param   nameOfClass     Class name to add
 * @see     checkForClass
 */
FM.addClass = function(element, nameOfClass) {
    if (typeof element == 'string') { element = document.getElementById(element); }

    if (!FM.checkForClass(element, nameOfClass)) {
        element.className += (element.className ? ' ' : '') + nameOfClass;
        return true;
    } else {
        return false;
    }
}

/**
 * Removes a class from an element's class attribute
 *
 * @author  Dan Delaney     http://fluidmind.org/
 * @param   element         DOM Element object (or element ID) to remove the class from
 * @param   nameOfClass     Class name to remove
 * @see     checkForClass
 */
FM.removeClass = function(element, nameOfClass) {
    if (typeof element == 'string') { element = document.getElementById(element); }

    if (FM.checkForClass(element, nameOfClass)) {
        element.className = element.className.replace(
            (element.className.indexOf(' ' + nameOfClass) >= 0 ? ' ' + nameOfClass : nameOfClass),
            '');
        return true;
    } else {
        return false;
    }
}

/**
 * Replaces a class with another if the class is present
 *
 * @author  Dan Delaney     http://fluidmind.org/
 * @param   element         DOM Element object (or element ID) to remove the class from
 * @param   class1          Class name to replace
 * @param   class2          Class name to replace it with
 * @see     checkForClass
 * @see     addClass
 * @see     removeClass
 */
FM.replaceClass = function(element, class1, class2) {
    if (typeof element == 'string') { element = document.getElementById(element); }

    if (FM.checkForClass(element, class1)) {
        FM.removeClass(element, class1);
        FM.addClass(element, class2);
        return true;
    } else {
        return false;
    }
}

/**
 * Toggles the specified class on and off
 *
 * @author  Dan Delaney     http://fluidmind.org/
 * @param   element         DOM Element object (or element ID) to toggle the class of
 * @param   nameOfClass     Class name to toggle
 * @see     checkForclass
 * @see     addClass
 * @see     removeClass
 */
FM.toggleClass = function(element, nameOfClass) {
    if (typeof element == 'string') { element = document.getElementById(element); }

    if (FM.checkForClass(element, nameOfClass)) {
        FM.removeClass(element, nameOfClass);
    } else {
        FM.addClass(element, nameOfClass);
    }

    return true;
}