var Picas = Class.create ({
  
  setPic: function(id) {
	if (el = $('photo1')) {
    	el.setStyle({'display': 'none'});
    }
    if (el = $('photo2')) {
    	el.setStyle({'display': 'none'});
    }
    if (el = $('photo3')) {
    	el.setStyle({'display': 'none'});
    }
    if (el = $('photo' + id)) {
    	el.setStyle({'display': ''});
    }
    
    if (el = $('photo1_row')) {
    	el.removeClassName('active');
    }
    if (el = $('photo2_row')) {
    	el.removeClassName('active');
    }
    if (el = $('photo3_row')) {
    	el.removeClassName('active');
    }
    if (el = $('photo' + id + '_row')) {
    	el.addClassName('active');
    }
  }
});

var objPic = new Picas();

function showProductLightbox(event) {
	var pos = $('photo1').style.display !== "none" ? 1 : ($('photo2').style.display !== "none" ? 2 : 3);
	__lighbox__.start($('photo' + pos));
}