function changeBackground(i, a, value){
		document.getElementById(a).style.background = value;	
}


function animateBackgroundElement(number, id_colorize, id_animate){
if (isItIE == "0") 
	{
		changeBackground(number, id_colorize, value_colorize[number-1]);
		changeOpac(0, id_animate);
		changeBackground(number, id_animate, value_color[number-1] + " url(img/" + value_image[number-1] + ") center no-repeat");
		opacity(id_animate, 0, 100, 1000);	
	}
	else {
		changeBackground(number, id_colorize, value_colorize[number-1]);
		changeBackground(number, id_animate, value_color[number-1] + " url(img/" + value_image[number-1] + ") center no-repeat");
	}
}


var number = 1;
var animowanie = 0;

function animateBackground(id_animate, id_colorize, max_number, time_offset){

		if ((animowanie == 1 && number == 1) || (number >= 2 && number <= max_number))
				animateBackgroundElement(number, id_colorize, id_animate);
	
	number++;
	animowanie = 1;
	if (number > max_number) number = 1;
	setTimeout("animateBackground('" + id_animate + "', '" + id_colorize + "', " + max_number +  ", " + time_offset  +")",time_offset);


} // end of animateBackground