popupParams["finance-popup"] = "location=yes,status=yes,resizable=yes,scrollbars=yes,width=560,height=500"; 

function emailBoxClick() {
	if( $F( "sidebarSubscription-emailAddress" ) == "Enter your email" ) Field.clear( "sidebarSubscription-emailAddress" );
}

function initEmailBox() {
	if( $( "sidebarSubscription-emailAddress" ) ) {
		Event.observe( "sidebarSubscription-emailAddress", "focus", emailBoxClick );
	}
}

initFunctions.push( initEmailBox );