function changeImages() {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
}

function go(step) {
	document.reg.step_ID.value = step;
	document.reg.submit();
}

function send(Form) {
	document.forms['"' + Form + '"'].submit();
}