function showBlackout() {
    if (!$('#blackout').length) {
    	if (!window.XMLHttpRequest) { //IE6-
    		$('select').hide();
		}
        $('body').append('<div id="blackout"></div>');
        if (!window.XMLHttpRequest) { //IE6-
    		$('#blackout').css('height', $('body').height()+"px");
		}
    }
}
function removeBlackout() {
	if (!window.XMLHttpRequest) { //IE6-
    	$('select').show();
	}
    $('#blackout').remove();
}
function centerElement(elementID) {
    if (window.innerWidth) {
        var windowWidth = window.innerWidth;
        var windowHeight = window.innerHeight;
    }
    else if (document.all) {
        var windowWidth = document.documentElement.clientWidth;
        var windowHeight = document.documentElement.clientHeight;
    }
    var elementWidth = $('#'+elementID).width();
    var elementHeight = $('#'+elementID).height();
    if (!window.XMLHttpRequest) { //IE6-
    	$('#'+elementID).css('position', 'absolute');
        window.scrollTo(0,0);
	}
	else {
		$('#'+elementID).css('position', 'fixed');
	}
    $('#'+elementID).css('z-index', '99999');
    $('#'+elementID).css('top', (windowHeight/2)-(elementHeight/2));
    $('#'+elementID).css('left', (windowWidth/2)-(elementWidth/2));
}

function slideToSlide(slider, newSlide, slideWidth) {
	var newLeft = (newSlide-1) * slideWidth;
	
	$('#'+slider).animate( { left: '-'+newLeft+'px' }, 'slow');
	$('#'+slider).data('curSlide', newSlide);
}

function slideLeft(sliderID, width) {
	var slider = $('#'+sliderID);
	var nextSlide = slider.data('curSlide')+1;
	if ($('.nextButton').is(':visible')) {
		slideToSlide(sliderID, nextSlide, width);	
		$('.prevButton').show();
	}
	if (nextSlide >= ($('.slide', slider).length)) {
		$('.nextButton').hide();
	}
}

function slideRight(sliderID, width) {
	var slider = $('#'+sliderID);
	var nextSlide = slider.data('curSlide')-1;
	if ($('.prevButton').is(':visible')) {
		slideToSlide(sliderID, nextSlide,width);
		$('.nextButton').show();
	}
	if (nextSlide <= 1) {
		$('.prevButton').hide();
	}
}

$(function() {
	$('form').bind('submit', function() {
		$('button', this).attr("disabled", "disabled");
	});
});