function doRegister(buttonName) {
	var mf = GetMainFormName();
	if (mf==null) return;
	if(document.all) {
		if ((event.which && event.which == 13) || (event.keyCode && event.keyCode == 13)) {
			document.forms[mf].all(buttonName).click();
			return false;
		} else {
			return true;
		}
	}
}