/*
jQuery Meerkat Plugin :: Version 1.0
Copyright (c) 2009 Jarod Taylor (http://www.jarodtaylor.com)
Licensed under the MIT (license.txt)
*/

function meerkat(options) {

    this.settings = {
        showMeerkatOnLoad: 'false',
        close: 'none',
        dontShow: 'none',
        dontShowExpire: 0,
        removeCookie: 'none',
        meerkatPosition: 'bottom',
        animation: 'slide',
        animationSpeed: 'slow',
        height: 'auto',
        background: 'none'
    }

    if (options) {
        jQuery.extend(this.settings, options);
    }

    var settings = this.settings;
    var cookieExpiration = settings.dontShowExpire;

    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);
    }

    jQuery(settings.removeCookie).click(function() { eraseCookie('meerkat') });

    if (readCookie('meerkat') != 'dontshow') {
        jQuery('html, body').css({ 'margin': '0', 'padding': '0', 'height': '100%' });
        jQuery('#meerkat').show().wrap('<div id="meerkat-wrap"><div id="meerkat-container">' + '</div></div>');

        jQuery('#meerkat-wrap').css({ 'position': 'fixed', 'width': '100%', 'height': settings.height }).css(settings.meerkatPosition, "0");
        jQuery('#meerkat-container').css({ 'background': settings.background, 'height': settings.height });
        //Give the close and dontShow elements a cursor (there's no need to use a href)
        jQuery(settings.close + "," + settings.dontShow).css({ "cursor": "pointer" });


        if (jQuery.browser.msie && jQuery.browser.version <= 6) {
            jQuery('html, body').css({ 'height': '100%', 'width': '100%', 'overflow': 'hidden' });
            jQuery('#meerkat-wrap').css({ 'position': 'absolute', 'bottom': '-1px' });

            jQuery("body").children()
				.filter(function(index) {
				    return jQuery(this).attr("id") != "meerkat-wrap";
				})
			.wrapAll('<div id="ie6-content-container">', '</div>');
            jQuery('#ie6-content-container').css({ 'position': 'relative', 'overflow': 'auto', 'width': '100%', 'height': '100%' });
            //Check if ie6-content-container has a scrollbar present. If it does we need to move the meerkat container over 17px
            var element = document.getElementById('ie6-content-container');
            if ((element.clientHeight < element.scrollHeight) && (settings.height != 100 + '%')) {
                jQuery('#meerkat-container').css({ 'margin-right': '17px' });
            }
            var bodyStyle = document.body.currentStyle;
            var bodyBgStyles = bodyStyle.backgroundColor + " " + bodyStyle.backgroundImage + " " + bodyStyle.backgroundRepeat + " " + bodyStyle.backgroundAttachment + " " + bodyStyle.backgroundPositionX + " " + bodyStyle.backgroundPositionY;
            jQuery('body').css({ 'background-image': 'none' });
            jQuery('#ie6-content-container').css({ 'background': bodyBgStyles });
        }

        if ((settings.animation == "slide") && (settings.showMeerkatOnLoad != "true")) {
            jQuery('#meerkat-wrap').hide().slideDown(settings.animationSpeed);
            jQuery(settings.close).click(function() {
                jQuery("#meerkat-wrap").slideUp();
            });

            jQuery(settings.dontShow).click(function() {
                createCookie('meerkat', 'dontshow', cookieExpiration);
                jQuery("#meerkat-wrap").slideUp();
            });
        } else if ((settings.animation == "fade") && (settings.showMeerkatOnLoad != "true")) {
            jQuery('#meerkat-wrap').hide().fadeIn(settings.animationSpeed);
            jQuery(settings.close).click(function() {
                jQuery("#meerkat-wrap").fadeOut(settings.animationSpeed);
            });

            jQuery(settings.dontShow).click(function() {
                createCookie('meerkat', 'dontshow', cookieExpiration);
                jQuery("#meerkat-wrap").fadeOut();
            });
        } else if ((settings.showMeerkatOnLoad == "true") && (settings.animation == "slide")) {
            jQuery('#meerkat-wrap').show();
            jQuery(settings.close).click(function() {
                jQuery("#meerkat-wrap").slideUp();
            });

            jQuery(settings.dontShow).click(function() {
                createCookie('meerkat', 'dontshow', cookieExpiration);
                jQuery("#meerkat-wrap").slideUp();
            });
        } else if ((settings.showMeerkatOnLoad == "true") && (settings.animation == "fade")) {
            jQuery('#meerkat-wrap').show();
            jQuery(settings.close).click(function() {
                jQuery("#meerkat-wrap").fadeOut(settings.animationSpeed);
            });

            jQuery(settings.dontShow).click(function() {
                createCookie('meerkat', 'dontshow', cookieExpiration);
                jQuery("#meerkat-wrap").fadeOut();
            });
        }
    } else {
        jQuery("#meerkat").hide();
    }
}