$(document).ready(function(){
    // Change stylesheet
    $("#style-changer-blue,#style-changer-yellow,#style-changer-black,#style-changer-red").live("click", function(){
        var color = $(this).attr("id");
        color = color.split("-");
        changeColor(color[2]);
        createCookie('color',color[2],30)
    });
    // Hide contact form output response
    var content = $(".wpcf7-response-output").html();
    if (content && content.length <= 0) {
        $(".wpcf7-response-output").css("display", "none");
    }
});

function changeColor(color) {
    var i,link,url;
    link = document.getElementsByTagName('link');
    for(i = 0; i < link.length; i++) {
        url = link[i];
        if (url.id == "colors") {
            url.href = "/wp-content/themes/penval/styles/color-"+color+".css?_="+Math.round(new Date().getTime() / 1000);
        }
    }
}

// Cookie functions thanks to 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);
}