function changeStep(){
	var changer = Ext.get('stepChanger').dom;
	step = 0 + changer.options[changer.selectedIndex].value;
	start = 0;
	go();
}

function hideAll(){
	if(Ext.get('submitbtn')){
		Ext.get('submitbtn').dom.style.display = 'none';
	}
}