/*
jQuery Meerkat Plugin :: Version 1.1
Modified (2010) Olivier 'iko' Petit (opetit@gmail.com)
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;
	}
	
	this.bindEvents= function() {
		//console.log('bindEvents');
		// Remove message if mouse is moved or key is pressed
		jQuery(window)
			.mousemove(this.removeMsg)
			.click(this.removeMsg)
			.keypress(this.removeMsg)
	}
	
	this.removeMsg= function() {
		// Unbind mouse & keyboard
		jQuery(window)
			.unbind('mousemove', this.removeMsg)
			.unbind('click', this.removeMsg)
			.unbind('keypress', this.removeMsg)		
		jQuery("#meerkat-wrap").slideUp();
	}
	
	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%'});
		if( $('#meerkat-wrap').length == 0 ){
			var s= settings['close'].split('');
			s.shift();
			var cl= s.join('');
			//console.log(settings['close'], s, cl);
			jQuery('#meerkat').show().wrap('<div id="meerkat-wrap"><div id="meerkat-container">' + '</div></div>');
			jQuery('#meerkat-container').append('<a class="'+s.join('')+'" style="cursor: pointer;">Close</a>');
			
			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);
			this.t1 = setTimeout("this.bindEvents()", 1500);
			this.t2 = setTimeout("this.removeMsg()", 5000);
			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();
	}
}