// JavaScript Document


var bannerimages = {
	"home-undef" : 				"new_images/banners/header1.jpg", 
	"aboutus-undef" : 			"new_images/banners/2a.jpg",
	"programs-undef" : 			"new_images/banners/3a.jpg",
	"programs-savealife" : 		"new_images/banners/8a.jpg",
	"programs-hopewalks" : 		"new_images/banners/12.jpg",
	"programs-education" : 		"new_images/banners/9a.jpg",
	"programs-partnersupport" : "new_images/banners/10a.jpg",
	"resources-resources" : 	"new_images/banners/4a.jpg",
	"resources-hivlinks" : 		"new_images/banners/8.jpg",
	"resources-events" : 		"new_images/banners/19.jpg",
	"news-newsletters" : 		"new_images/banners/5a.jpg",
	"news-newsupdates" : 		"new_images/banners/20.jpg",
	"contact-undef" : 			"new_images/banners/1a.jpg",	
	"donations-undef" : 		"new_images/banners/7a.jpg"
	};

var bannerimageslist = [
				"new_images/banners/header1.jpg", 
			"new_images/banners/2a.jpg",
				"new_images/banners/3a.jpg",
			"new_images/banners/8a.jpg",
		"new_images/banners/12.jpg",
		"new_images/banners/9a.jpg",
	 "new_images/banners/10a.jpg",
		"new_images/banners/4a.jpg",
		"new_images/banners/8.jpg",
			"new_images/banners/19.jpg",
			"new_images/banners/5a.jpg",
			"new_images/banners/20.jpg",
				"new_images/banners/1a.jpg",	
			"new_images/banners/7a.jpg"
	];

var preloadlist = [ // preload top level banner images
				   
				"new_images/banners/header1.jpg", 
			"new_images/banners/2a.jpg",
				"new_images/banners/3a.jpg",
			/*"new_images/banners/8a.jpg",
		"new_images/banners/12.jpg",
		"new_images/banners/9a.jpg",
	 "new_images/banners/10a.jpg",*/
		"new_images/banners/4a.jpg",
		/*"new_images/banners/8.jpg",
			"new_images/banners/19.jpg",*/
			"new_images/banners/5a.jpg",
		/*	"new_images/banners/20.jpg",*/
				"new_images/banners/1a.jpg",	
			"new_images/banners/7a.jpg"
				   
				   
				   
				   ];

	
$(function(){
		   
/* jquery actions on document load  */	

		$('a.popup').click(function(){ 
				window.open(this.href, 
							'_blank',
							'scrollbars=yes,resizable=yes,width=700,height=650');
				return false;
		});
		
		$('a.popupmovie').click(function(){ 
				window.open(this.href, 
				'_blank',
				'scrollbars=yes,resizable=yes,width=400,height=350');
				return false;
		});
		
		$('a.popupmovie').hover(
				function(){ $(this).css('opacity', 0.7);}, 
				function(){ $(this).css('opacity', 1.0);}
				);
		
		$('a>img').hover(
				function(){ $(this).css('opacity', 0.7);}, 
				function(){ $(this).css('opacity', 1.0);}
				);
		
// add sfhover class to hovered navbar items in first ul ... NEEDED FOR IE6 BEHAVIOR
		$('#menuwrapper ul.menu>li').hover(
				function(){
						$('#menuwrapper ul.menu>li').removeClass('sfhover');
						$(this).addClass('sfhover');}, 
				function(){ $(this).removeClass('sfhover');}
				);	
		
// add the 'active' class to the menu li that matches the template parameter pageid
		var pageid = $("body").attr("id");
		var subpageid = $("body").attr("class"); 
		$("ul.menu li.nav"+pageid).addClass("active");
		$("ul.submenu li.nav"+subpageid).addClass("active");
		

		
// set the banner heading depending on the page we are on
	   // var bannerid = pageid+"-"+subpageid;
		//var bannersrc = bannerimages [bannerid];
		//bannersrc = bannersrc ? bannersrc : 'images/banners/1.jpg';
		//$('#logo').html(
		//$('<img>').attr('src', bannersrc).attr('title', "Global Strategies for HIV Prevention"));
	
// sequentially set the banners, starting from a random position
// preloader function
$.preloadImages = function() {
var a = (typeof arguments[0] == 'object')? arguments[0] : arguments;
for(var i = a.length -1; i > 0; i--) {
$("<img>").attr("src", a[i]);
}
}
// preload the images in the list
//$.preloadImages(preloadlist);
// now choose an image, and save the last one in a cookie
 		var lastbanner = Math.floor(Math.random()*bannerimageslist.length); // 0 to length-1
		if ($.cookies.get('lastbanner')) { 
			// alert ('cookies set '); 
			lastbanner = ( (1*$.cookies.get('lastbanner')+1) % bannerimageslist.length ) ;
			};
		$.cookies.set('lastbanner', lastbanner);
	//alert(lastbanner);
		var bannersrc = bannerimageslist [lastbanner];
		$('#logo').html(
		$('<img>').attr('src', '/'+bannersrc).attr('title', "Global Strategies for HIV Prevention"));
		
		
});