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(function(window) {

	'use strict';

	var toggleEvent = function(el, name, fn, unbind) {
			var methodName = (unbind ? 'remove' : 'add') + 'EventListener';
			el[methodName](name, fn, false);
		};

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// detect if naturalWidth property is supported
// getting it is much faster than getComputedStyle()
var supportsNatural = ( "naturalWidth" in (new Image()) ),
    imagePath = 'image.jpg',
    interval,
    hasSize,
    onHasSize = function() {
        if(hasSize) return;

        var naturalWidth = supportsNatural ? img[0].naturalWidth : img.width();

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/**
 *
 * desktop-zoom.js:
 *
 * - Binds mousewheel event for paning zoomed image.
 * - Manages "dragging", "zoomed-in", "zoom-out" classes.
 *   (which are used for cursors and zoom icon)
 * - Adds toggleDesktopZoom function.
 * 
 */

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Regular expression cheat sheet for Varnish

Varnish regular expressions are NOT case sensitive. Varnish uses POSIX
regular expressions, for a complete guide, see: "man 7 regex"

Basic matching:
	req.url ~ "searchterm"
	True if req.url contains "searchterm" anywhere.

	req.url == "searchterm"

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(function() {
	function trackJavaScriptError(e) {
		e = e || window.event;
		if(!e || !e.message || !e.lineno){ 
			return true; 
		}
		var errMsg = e.message;
		var errSrc = e.filename + ': ' + e.lineno;
		ga('send', 'event', 'JavaScript Error', errMsg, errSrc, { 'nonInteraction': 1 });
	}