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$(function(){
	var $win = $(window)
	var $nav = $('.mytoolbar');
	var navTop = $('.mytoolbar').length && $('.mytoolbar').offset().top;
	var isFixed=0;
 
	processScroll()
	$win.on('scroll', processScroll)
 
	function processScroll() {
	var i, scrollTop = $win.scrollTop()
 
	if (scrollTop >= navTop && !isFixed) { 
		isFixed = 1
		$nav.addClass('subnav-fixed')
	} else if (scrollTop <= navTop && isFixed) {
		isFixed = 0
 		$nav.removeClass('subnav-fixed')
	}
}