$(document).ready(function(){

	var allimages = new Array(
			'images/bkg/bkg.jpg', 
			'images/bkg/bkg01.jpg', 
			'images/bkg/bkg02.jpg', 
			'images/bkg/bkg03.jpg', 
			'images/bkg/bkg04.jpg',
			'images/bkg/bkg05.jpg',
			'images/bkg/bkg06.jpg',
			'images/bkg/bkg07.jpg',
			'images/bkg/bkg08.jpg',
			'images/bkg/bkg09.jpg',
			'images/bkg/bkg10.jpg',
			'images/bkg/bkg11.jpg',
			'images/bkg/bkg12.jpg',
			'images/bkg/bkg13.jpg'			
		);
	
	var nxt = allimages[Math.floor(Math.random() * (allimages.length))];
	var nxt_image = new Image(1000, 400);
	nxt_image.src = nxt;
	$("#bkg_img").show();

	var t0 = new Date().getTime();
	var duration = 7000;
	var fade_time = 3000;
	var request_time = 3000;

	function DoBkgProcess() {
		var t1 = new Date().getTime();
		if ( (t1 - t0) > duration ) {
			if (nxt_image.complete) {
				
				$("#bkg_img_2").attr('src', nxt_image.src);
				$("#bkg_img").fadeOut(fade_time);
				$("#bkg_img_2").fadeIn(fade_time, function(){
					$("#bkg_img").show();
					$("#bkg_img").attr('src', $("#bkg_img_2").attr('src') );
					$("#bkg_img_2").hide();
				});
				nxt = allimages[Math.floor(Math.random() * (allimages.length))];
				nxt_image.src = nxt;
				t0 = new Date().getTime();
			}
		}
		setTimeout(DoBkgProcess, request_time);
	}

	DoBkgProcess();
})

function enterForm(event) {
	if((event.keyCode == 0xA)||(event.keyCode == 0xD)) {
		$("#loginForm").submit();
    }
}