var effectSpeed = 8;

function IncChoice()

{

	this.currentWorldIndex = -1;

	this.lastWorldIndex = -1;

	this.setMosaicEffect = function(images1, images2, nextUrl)

	{

		// Choose 2 image for the effect

		var image1 = images1[incMosaic.randomInt(0, images1.length)];

		var image2 = images2[incMosaic.randomInt(0, images2.length)];

        incMosaic.addImageUrl("static/res/img/" + image1);

        incMosaic.addImageUrl("static/res/img/" + image2);

        // Start mosaic effect

    	incMosaic.start("mosaic", effectSpeed, 9, 5, false, true, function() { location.href = nextUrl;});        

	};

	this.selectWord = function(word)

	{

		if (this.currentWorldIndex == this.lastWorldIndex) {

			// Don't set the word 2 times

			return;

		}

		// Start the mosaic effect

		incMosaic.goEffect();

		// Fade the text

		$('.big_txt').animate({opacity: 0}, 20000 * 1 / effectSpeed);

		// Save the word

		this.setCookie("niv1_world" + this.currentWorldIndex, word);

		this.lastWorldIndex = this.currentWorldIndex;

		//++this.currentWorldIndex;

	};

	this.setCookie = function(name, value)

	{

		$.removeCookie(name);

		$.cookie(name, value, { expires: 7, path: '/' });    	

    };

	this.getCookie = function(name) {

		return $.cookie(name);

	};

}

var incChoice = new IncChoice();