/*
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();
    }
}