var curPhoto=0;

function display_loading () {Loading();}

function hide_loading() {
    destroyLoading();
}

function zaznacz_wszystkie(obiekt) {
	ile=obiekt.length;
	i=0;
	while (i < ile) {
		obiekt.options[i].selected=1;
		i=i+1;
	}

}
function odznacz_wszystkie(obiekt) {
	ile=obiekt.length;
	i=0;
	while (i < ile) {
		obiekt.options[i].selected=0;
		i=i+1;
	}
}

function showNext(){
	var images=$$('.itemDetails .info .pic a');
	var ilosc=images.length;
	if(ilosc <= (curPhoto+1)) return false;
	for(i=0; i < ilosc; i++){
		if(i==(curPhoto+1))	images[i].setStyle('display', 'block');
		else images[i].setStyle('display', 'none');
	}
	curPhoto++;
	refreshButtons(ilosc);
}

function showPrev(){
	var images=$$('.itemDetails .info .pic a');
	var ilosc=images.length;
	if(curPhoto==0) return false;
	for(i=0; i < ilosc; i++){
		if(i==(curPhoto - 1))	images[i].setStyle('display', 'block');
		else images[i].setStyle('display', 'none');
	}
	curPhoto--;
	refreshButtons(ilosc);	
}

function refreshButtons(ilosc){
	if(curPhoto==(ilosc - 1)) $('next-photo').setProperty('src', odnosnik+'system/application/views/img/ikony/arrow_right_off.gif');
	else $('next-photo').setProperty('src', odnosnik+'system/application/views/img/ikony/arrow_right.gif');
	
	if(curPhoto==0) $('prev-photo').setProperty('src', odnosnik+'system/application/views/img/ikony/arrow_left_off.gif');
	else $('prev-photo').setProperty('src', odnosnik+'system/application/views/img/ikony/arrow_left.gif');	
}