var jq = jQuery.noConflict();
     
jq(document).ready(function($){

// Skifta út titlinum í námskeiðsskráningu

var newtitle = $("#calendar-event h2").text();
$("#fs_skraning #course").val(newtitle);


// Submit on change

$('.submitonchange').change(function() {
	if($(this).val()=='-1') {
		return false;
	} else {
		this.form.submit();
	}
});


$('p.readmore a').wrapInner('<span class="tl"><span class="tr"></span></span>');



//----- 	
// Switch stylesheets starts
//-----

var c = readCookie('style');

if (c) {
	
	switchStylestyle(c);
	 
	if (c == "font_11px") {
        	$('.big_font').each(function(i) {
			$(this).attr({
				rel: "font_12px"
        		});
        	});
        	$('.small_font').each(function(i) {
			$(this).attr({
				rel: "font_11px"
        		});
        	});
        } else if (c == "font_12px") {
        	$('.big_font').each(function(i) {
			$(this).attr({
				rel: "font_13px"
        		});
        	});
        	$('.small_font').each(function(i) {
			$(this).attr({
				rel: "font_11px"
        		});
        	});
        } else if (c == "font_13px") {
        	$('.big_font').each(function(i) {
			$(this).attr({
				rel: "font_13px"
        		});
        	});
        	$('.small_font').each(function(i) {
			$(this).attr({
				rel: "font_12px"
        		});
        	});
        }
}
	
$('.big_font').click(function() {

	var relatt = this.getAttribute("rel");
        
       	switchStylestyle(relatt);
        
        if (relatt == "font_12px") {
		$(this).attr({
			rel: "font_13px"
        	});
        }
        if (relatt == "font_13px") {	
        	$('.small_font').attr({
			rel: "font_12px"
        	});
	}
	
        return false;
}); 	

$('.small_font').click(function() {

	var relatt = this.getAttribute("rel");
        
       	switchStylestyle(relatt);
        
        if (relatt == "font_12px") {
		$(this).attr({
			rel: "font_11px"
        	});
        }
        if (relatt == "font_11px") {	
        	$('.big_font').attr({
			rel: "font_12px"
        	});
	}
	
        return false;
}); 	

//-----
// Switch stylesheets ends
//-----

//----
// Simple form validator
//----   

	function validateField(field) {
		var error = false;
		
		// required fields
		if ($(field).attr("class").indexOf("required") != -1) {
			if (!$(field).val().length)
				error = true;
		}
		// numeric fields
		if ($(field).attr("class").indexOf("numeric") != -1) {
			if (!/^[0-9]*$/.test($(field).val()))
				error = true;
		}
		// characters (letters)
		if ($(field).attr("class").indexOf("character") != -1) {
			if (!/^[a-zA-ZöÖäÄåÅ]*$/.test($(field).val()))
				error = true;
		}
		// emails
		if ($(field).attr("class").indexOf("email") != -1) {
			if (!/^[a-zA-Z0-9]{1}([\._a-zA-Z0-9-]+)(\.[_a-zA-Z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+){1,3}$/.test($(field).val()))
				error = true;
		}
		
		if (error) {
			$(field).addClass("error");
		} else {
			$(field).removeClass("error");
		}
		
		return !error;
	}
	
	$("form").each( function() {
		// handle submissions without filling any field
		$(this).submit(function () {
			var validationError = false;
			// for each field test it
			$("input, select, textarea", this).each( function() {
				if ($(this).attr("class")) {
					if (!validateField(this))
						validationError = true;
				}
			});
			return !validationError;
		});
	
		// handle changes on the fly
		$("input, select, textarea", this).each( function() {
			if ($(this).attr("class")) {
				$(this).blur( function() { validateField(this) } );
    			}
		});
	});	
	
	
}); // onready ends



function switchStylestyle(styleName)
{
        jq('link[@rel*=style][@title]').each(function(i)
        {
                this.disabled = true;
                if (this.getAttribute('title') == styleName) this.disabled = false;
        });
        createCookie('style', styleName, 365);
}


// cookie functions http://www.quirksmode.org/js/cookies.html

function createCookie(name,value,days){
	if (days)	{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name){
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++){
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name){
	createCookie(name,"",-1);
}

// cookie functions end