Resize listener to call functions based on window size

jQuery resize listener

$(document).ready(function() {

	var mobile,
		w = $(window),
		breakpoint = 640,
		sw = document.documentElement.clientWidth,
		sh = document.documentElement.clientHeight;

	w.on('resize orientationchange', function() {
		sw = document.documentElement.clientWidth;
		sh = document.documentElement.clientHeight;

		// Wait until browser window stops resizing to call functions
		waitForFinalEvent(function(){
			checkMobile();
		}, 500, "windowResize");

	});

	function checkMobile() {
		mobile = (sw >= breakpoint) ? false : true;

		if (mobile) {
			// Call mobile functions
		}
		else {
			// Call desktop functions
		}

	}

	checkMobile();

});