var navall_marginTop= 10;
var navall_identif	= '#menu';
var moveToValueLast = "";
function navall(navall_top) {
	var document_top= $(document).scrollTop();
	if (document_top > navall_top) moveToValue = document_top + navall_marginTop;
	else moveToValue = navall_top;
	if (moveToValue != moveToValueLast) {
		moveToValueLast = moveToValue;
		move = $(navall_identif).animate({'top': moveToValue + 'px'}, 400, function() {
		});
	}
	setTimeout("navall("+navall_top+");", 500);
}
$(document).ready(function() {
	var navall_top		= $(navall_identif).offset().top;
	if (navall_top == 0) {
		var navall_top		= parseInt($(navall_identif).css('top'));
	}
	$(navall_identif).css('margin-top', '0px');
	navall(navall_top);
});