var hide = false;
var nextImg = 0;
function hideSubmenu(){
	if (hide){
		$('div.submenu').hide();
	}
}

function switchImg(index, manual){
	if ( index >= topImg.length ){
		index = 0;
	}
	if (index < topImg.length || index >= 0){		
		$('#top_img_container').css('display','none');		
		$('#top_img_container').css('background-image','url('+topImg[index]+')');
		$('#top_img_container').fadeIn(1400);
	}
	
	$('.img_act').removeClass('img_act');
	$('#img_bt_'+index).addClass('img_act');
	nextImg = index+1;
	if ( manual != true){
		setTimeout('switchImg(nextImg)', 5000);
	}
}

$(document).ready(function(){
	$('div.sub').mouseenter(function(){
		$('div.submenu').hide();
		$('div.submenu', this).show();
		hide = false;
	});

	$('div.sub').mouseleave(function(){
		hide = true;
		setTimeout(hideSubmenu, 500);	
	});
	
	for (i=0;i<topImg.length;i++){
		var cacheImage = document.createElement('img');
	    cacheImage.src = topImg[i];
	}
	
	switchImg(0);
	
	$('.top_menu_pos').each(function(){
		$('div.c',this).css('width',$('div.c',this).width()+'px');
		$(this).css('width',($('div.c',this).width()+10)+'px');
	});
	
});