var p_01 = new Image();
p_01.src = "/themes/nst/pics/splash_01.jpg";
var p_02 = new Image();
p_02.src = "/themes/nst/pics/splash_02.jpg";
var p_03 = new Image();
p_03.src = "/themes/nst/pics/splash_03.jpg";
var p_04 = new Image();
p_04.src = "/themes/nst/pics/splash_04.jpg";
var timeout;
var scroller;
var now = 1;
var delay=300;
var scroller_delay=3800;

  $(document).ready(function(){
	
	var screenHeight = $(window).height();
	var mainHeight = $(".body_wrap").height();
	var footerHeight = $(".footer").height();
	var delta = screenHeight - (mainHeight+footerHeight);
	if (delta > 0) {
		$(".footer").css("margin-top", delta+"px");
	} else {
		$(".footer").css("margin-top", "0");
	}
    
	if($(".active_menu").attr("pic")) {	  
	  
	  $(".active_menu").css("background-position","left top");
	  thepic = $(".active_menu").attr("pic");
	  thepic_var = eval('p_0'+thepic);
	  $("div.splashes>img").attr("src",thepic_var.src);
	  $("div.splashes").css("background-image","url("+thepic_var.src+")");
	  
	  $("div.center_grad_splash").mouseleave(function(){
		$("div.top_menu > ul > li > a").css("background-position","left 100px");
		$(".active_menu").css("background-position","left top");
		thepic = $(".active_menu").attr("pic");
		thepic_var = eval('p_0'+thepic);
		
		if (timeout) {
		  clearTimeout(timeout);
	    }
		
		if($("div.splashes>img").attr("src")!=thepic_var.src){	
		    $("div.splashes").css("background-image","url("+$("div.splashes>img").attr("src")+")");
			$("div.splashes>img").hide();
			$("div.splashes>img").attr("src",thepic_var.src);
			$("div.splashes>img").fadeIn(delay);
	  	}
		
	  });
	  
	} else {
		 scroller = setInterval("rotate()", scroller_delay);		 
		 $("div.top_menu > ul > li > a:first").css("background-position","left top");
		
	}
	  
    $("div.top_menu > ul > li > a").mouseenter(function(){
	  $("div.top_menu > ul > li > a").css("background-position","left 100px");
	  $(this).css("background-position","left top");	  
	  thepic = $(this).attr("pic");
	  thepic_var = eval('p_0'+thepic);	  
	  clearTimeout(scroller);	  
	  if($("div.splashes>img").attr("src")!=thepic_var.src){
	    if (timeout) {
		  clearTimeout(timeout);
	    }			
		timeout = setTimeout("showME('" + thepic_var.src + "')", 200);		
	  }
	  
    });	
	  
  });

function showME(srcpic) {
	    $("div.splashes").css("background-image","url("+$("div.splashes>img").attr("src")+")");	
		$("div.splashes>img").hide();				
	  	$("div.splashes>img").attr("src",srcpic);
	  	$("div.splashes>img").fadeIn(delay);	
	}
	
function rotate(){	
	now++;
	//alert(now);
	if(now>4){
		clearTimeout(scroller); //comment this for infinite loop
		$("div.top_menu > ul > li > a").css("background-position","left 100px");
		$("div.top_menu > ul > li:eq(0) > a").css("background-position","left 0px");
		now=1;
		thepic_var = eval('p_0'+now);
		$("div.splashes").css("background-image","url("+$("div.splashes>img").attr("src")+")");	
		$("div.splashes>img").hide();				
	  	$("div.splashes>img").attr("src",thepic_var.src);
	  	$("div.splashes>img").fadeIn(delay);
	} else {
		$("div.top_menu > ul > li > a").css("background-position","left 100px");
		$("div.top_menu > ul > li:eq("+(now-1)+") > a").css("background-position","left 0px");
		thepic_var = eval('p_0'+now);
		$("div.splashes").css("background-image","url("+$("div.splashes>img").attr("src")+")");	
		$("div.splashes>img").hide();				
	  	$("div.splashes>img").attr("src",thepic_var.src);
	  	$("div.splashes>img").fadeIn(delay);
	}
}