var busy = false;
var background = 0;
var background_delay = 10000;

$(document).ready(function(){
	$("#btnNext").mouseover( function() { $("#btnNext").attr('src','/resources/media/slidePrevious02.png'); } );
	$("#btnNext").mouseout(function() { $("#btnNext").attr('src', '/resources/media/slidePrevious01.png'); });
	$("#btnNext").click( function() { slideSwitch(0); });

	$("#btnPrev").mouseover(function() { $("#btnPrev").attr('src', '/resources/media/slideNext02.png'); });
	$("#btnPrev").mouseout(function() { $("#btnPrev").attr('src', '/resources/media/slideNext01.png'); });
	$("#btnPrev").click( function() { slideSwitch(1); });
});	

function slideSwitch(next_photo) {
	function changeBackground() {	
		if ( $("#background1").css('display') == 'none') {
		    $("#background1").attr('src', backgrounds[background]);
			$("#background2").fadeOut(1000);
			$("#background1").fadeIn(1000);
			$("#txt").attr('innerHTML', texts[background]);
			$("#txt").css('color', colors[background]);
		} else {
			$("#background2").attr('src',backgrounds[background]);
			$("#background1").fadeOut(1000);
			$("#background2").fadeIn(1000);
			$("#txt").attr('innerHTML', texts[background]);
			$("#txt").css('color', colors[background]);
		}
	}
	
	if (!busy){
		busy = true;
		clearTimeout(timer);
		timer = setInterval( "slideSwitch(1)", background_delay);
		
		if (!next_photo) {
			if (background==0) background = backgrounds.length-1;
			else background--;
		} else {
			if (background==(backgrounds.length-1)) background = 0;
			else background++;			
		}

		bckimg= new Image();
		bckimg.src = backgrounds[background];
	
		if ($.browser.msie) {
			function testImg(){
		        if(bckimg.complete != null && bckimg.complete == true){ 
		                changeBackground();
		                return;
		        }
		        setTimeout(testImg, 300);
			}
			setTimeout(testImg, 300);
		}
		else bckimg.onload = changeBackground;
		
		bckimgnew= new Image();
		bckimgnew.src = backgrounds[background + 1];
		
		busy=false;	
	}
	else { clearTimeout(timer); timer = setTimeout( "slideSwitch(1)", 1500);}
}

$(function() {
    timer = setInterval( "slideSwitch(1)", background_delay);	
});