var name = "#gnv";
var menuYloc = null;
$(document).ready(function(){
	menuYloc = parseInt($(name).css("top").substring(0,$(name).css("top").indexOf("px")));
	$(window).scroll(function () { 
		scrtop = $(document).scrollTop();
		offset = menuYloc+scrtop+"px";
			if(scrtop > 95){
				offset = scrtop-5+"px";
			}else{
				offset = "85px";
			}
		$(name).css("top",offset);
	});
});