Bootstrap looped item grid

bootstrap-looped-grid.js

$(document).ready(function(){
		var width = $(window).width(); 
		var height = $(window).height();
		var divs = $('.item');
		if (width >= 1200  ){
		     for(var i = 0; i < divs.length; i+=4) {
		       divs.slice(i, i+4).wrapAll('<div class="row"></div>');
		     }
		} else if (width >= 992){
			for(var i = 0; i < divs.length; i+=3) {
			  divs.slice(i, i+3).wrapAll('<div class="row"></div>');
			}
		} else {
			for(var i = 0; i < divs.length; i+=2) {
			  divs.slice(i, i+2).wrapAll('<div class="row"></div>');
			}
		}
	});