var rolled = 1;
function roll_div(vardiv) {
	if(rolled==1) {
		Effect.SlideDown(vardiv,{duration:0.7}); 
		rolled = 2;
		return false;
	}
	else {
		Effect.SlideUp(vardiv,{duration:0.7}); 
		rolled = 1;
		return false;
	}
}

function mouse_event(obj, newClass) {
	obj.className = newClass;
}