//This file is part of briaskISS.

//

//    briaskISS is free software: you can redistribute it and/or modify

//    it under the terms of the GNU General Public License as published by

//    the Free Software Foundation, either version 3 of the License, or

//    (at your option) any later version.

//

//    briaskISS is distributed in the hope that it will be useful,

//    but WITHOUT ANY WARRANTY; without even the implied warranty of

//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

//    GNU General Public License for more details.

//

//    You should have received a copy of the GNU General Public License

//    along with briaskISS.  If not, see <http://www.gnu.org/licenses/>.



function briaskISS(idModule, random, picInterval, transDelay, picArray)

{

	this.picRandom = random;

	this.picInterval = picInterval;

	this.transDelay = transDelay;

	this.picArray = picArray;



	this.curPic = 0;

	this.nextPic = 0;

	this.numPics = 0;

	this.curOpacity = 99

	this.nextOpacity = 0;



	this.idModule = idModule;



	this.initISS();

}



briaskISS.prototype.initISS=function()

{

	if (!document.getElementById || !document.createElement) return;



	this.picArray[0]

		= document.getElementById("briask-iss"+this.idModule).getElementsByTagName("img");



	this.numPics = this.picArray[0].length ;



	for(i = 0; i < this.picArray[0].length; i++)

		{

			this.picArray[0][i].opacity = 0;

			this.picArray[0][i].style.MozOpacity = .0;

			this.picArray[0][i].style.filter = "alpha(opacity=0)";

		}



	if (this.picRandom == 3)

	{

		this.issNextPic();

	}



	this.picArray[0][this.nextPic].style.display = "block";

	this.picArray[0][this.nextPic].style.opacity = .99;

	this.picArray[0][this.nextPic].style.MozOpacity = .99;

	this.picArray[0][this.nextPic].style.filter = "alpha(opacity=" + (.99*100) + ")";



	this.curPic = this.nextPic;

	setTimeout("briaskInstance"+this.idModule+".issShow()", this.picInterval);

}



briaskISS.prototype.issShow=function()

{

	this.issNextPic();



	this.curOpacity = 100, this.nextOpacity = 0;



	setTimeout("briaskInstance"+this.idModule+".issTransition()", this.transDelay);

}



briaskISS.prototype.issNextPic=function()

{

	if (this.picRandom < 3)

	{

		if (this.curPic < (this.numPics - 1))

		{

			this.nextPic = this.curPic + 1;

		}

		else

		{

			this.nextPic = 0;

		}

	}

	else

	{

		do

		{

			now = new Date();



			var rndPic = Math.ceil(this.numPics * Math.random(this.idModule)) - 1;



		} 	while (this.curPic == rndPic)



		this.nextPic = rndPic;

	}

}



briaskISS.prototype.issTransition = function ()

{

	this.picArray[0][this.nextPic].style.display = "block";



	this.picArray[0][this.curPic].style.opacity = this.curOpacity/100;

	this.picArray[0][this.curPic].style.MozOpacity = this.curOpacity/100;

	this.picArray[0][this.curPic].style.filter = "alpha(opacity=" + (this.curOpacity) + ")";



	this.picArray[0][this.nextPic].style.opacity = this.nextOpacity/100;

	this.picArray[0][this.nextPic].style.MozOpacity = this.nextOpacity/100;

	this.picArray[0][this.nextPic].style.filter = "alpha(opacity=" + (this.nextOpacity) + ")";



	if (this.curOpacity > 0)

	{

		this.curOpacity -= 4;

		this.nextOpacity += 4;

		setTimeout("briaskInstance"+this.idModule+".issTransition()", this.transDelay);

	}

	else

	{

		this.picArray[0][this.curPic].style.display = "none";



		this.curPic = this.nextPic;

		setTimeout("briaskInstance"+this.idModule+".issShow()", this.picInterval);

	}

}