Fix checks for undefined in zoomslidercontrol
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@@ -98,7 +98,7 @@ ol.control.ZoomSlider = function(opt_options) {
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*/
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*/
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this.duration_ = options.duration !== undefined ? options.duration : 200;
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this.duration_ = options.duration !== undefined ? options.duration : 200;
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var className = options.className ? options.className : 'ol-zoomslider';
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var className = options.className !== undefined ? options.className : 'ol-zoomslider';
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var thumbElement = goog.dom.createDom('BUTTON', {
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var thumbElement = goog.dom.createDom('BUTTON', {
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'type': 'button',
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'type': 'button',
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'class': className + '-thumb ' + ol.css.CLASS_UNSELECTABLE
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'class': className + '-thumb ' + ol.css.CLASS_UNSELECTABLE
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