tab = 0;

function switchTab(i) {
	
	if(i != tab) {
	
		$('#tab'+i).removeClass('tab_nonActive').addClass('tab_active');
	
		$('#tab'+tab).removeClass('tab_active').addClass('tab_nonActive'); 
	
		/************/
		
		var step = i * 440;
		
		$('#bannersMove').animate({'margin-top':-step},750);
		
		/************/
		
		banner_start('#ban'+i);
		
		$('#ban'+tab).data('nivoslider').stop();
		
		/************/
		
		var stepBack = i * 15;
		
		var stepFront = (i * 25) - 50 ;
		
		$('#townBack').animate({'margin-top':-stepBack},700);
		
		$('#townFront').animate({'margin-top':-stepFront},700);
		
		/************/
		
		tab = i;
		
	}

}

function banner_start(div) {

		/* Banners */
   		
  		$(div).nivoSlider({
    	    effect: 'fade', 		// Specify sets like: 'random,fold,fade,sliceDown'
    	    animSpeed: 600, 		// Slide transition speed
    	    pauseTime: 5000000, 	// How long each slide will show
    	    startSlide: 0, 			// Set starting Slide (0 index)
    	    directionNav: true, 	// Next and Prev navigation
    	    directionNavHide: false, // Only show on hover
    	    controlNav: true, 		// 1,2,3... navigation
    	    pauseOnHover: false, 	// Stop animation while hovering
    	    captionOpacity: 0.8, 	// Universal caption opacity
    	    randomStart: false 		// Start on a random slide
    	});
    	
    	$(div).data('nivoslider').start();

}