$(document).ready(function() {
	var browserHeight = $(window).height();
	
	$('body').css("overflow-y","hidden");
	    function elementResize() {
		var browserHeight = $(window).height();
		if (browserHeight <= 670){
		    $('body').css('overflow-y' , 'scroll');
		} else {
		    $('body').css('overflow-y' , 'hidden');
		}
	    }
	    
	    elementResize();
	
	    $(window).bind("resize", function(){
		elementResize();
	    });
	});