function go()
{	
	var format;
	if (document.form1.mode.options[document.form1.mode.selectedIndex].value == 'normal_size')
		format = '.png';
	else
		format = '.gif';
	document['imgMain'].src = 'http://gaiapets.tralha.net/graphics/images/feedables/' + document.form1.mode.options[document.form1.mode.selectedIndex].value + '/' + document.form1.race.options[document.form1.race.selectedIndex].value + '/' + document.form1.mood.options[document.form1.mood.selectedIndex].value + document.form1.time.options[document.form1.time.selectedIndex].value + document.form1.stage.options[document.form1.stage.selectedIndex].value + format;
}