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// function is triggered on resize and document ready
$(window).on('resize',function() {
    var $elem = $('.my-checker-elem');
    if ($elem.length && $elem.css('display') == 'none') { // or other CSS property
      // do something
    } else { 
       // do something or not ...  
    }  
}).trigger('resize');

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var lnks = $(".ocmenu a:not(.ocmenu-subopen)");
lnks.click(function(e) {
    e.preventDefault();
    var $html = $('html, body'),
        href = $(this).attr('href'),
        offs = $(href).offset().top;

        $(".ocmenu-item").removeClass("ocmenu-active");
        $(this).parent("li").addClass("ocmenu-active");

fietstouring

<?php 
// using classes from jquery pretty social 
// https://github.com/sonnyt/prettySocial
$soc_url = seo42::getFullUrl($this->getValue("article_id")); // get the complete URL
$soc_title = rex_getString("website_name"); // get website name from string table
$soc_descr = rex_getString("social_description"); // detto
$soc_media = seo42::getMediaFile("facebook-file.jpg"); // get a file for facebook and pinterest
$twitter_via = ''; 
$linkedin_via = '';

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function GetIEVersion() {
	  var sAgent = window.navigator.userAgent;
	  var Idx = sAgent.indexOf("MSIE");

	  // If IE, return version number.
	  if (Idx > 0) 
	    return parseInt(sAgent.substring(Idx+ 5, sAgent.indexOf(".", Idx)));

	  // If IE 11 then look for "Trident" in user agent string.
	  else if (!!navigator.userAgent.match(/trident/gi)) 

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// SVG Fallback to PNG with data-fallback="url-to-fallback-image.ext"
if(!Modernizr.svg) {
    var imgs = $('img[data-fallback]');
    imgs.attr('src', imgs.data('fallback'));
}

// SVG Fallback to pngs by the same name
if (!Modernizr.svg) {
      var imgs = document.getElementsByTagName('img');
      var svgExtension = /.*\.svg$/

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// Dynamic Back-to-Top Link Button    
var offset = 350,
    duration = 600,
    btt = $('#back-to-top');

$(window).scroll(function() {
    if(btt.css("position") !== "static") {   
      if ($(this).scrollTop() > offset) {
          btt.fadeIn(duration);
      } else {

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// Animated local links 
var lnks = $("a[href*=#]");
lnks.click(function(e) {
    e.preventDefault();
    var offs = $($(this).attr('href')).offset().top;
    $('html, body').animate({scrollTop:offs}, 600);
    $(this).blur();
});

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/* Use .msie-overflow {
	-ms-overflow-style: scrollbar;
}

on the outer created DIV. */

function getScrollbarWidth() {
	    var outer = document.createElement("div");
	    outer.style.visibility = "hidden";
	    outer.style.width = "100px";

fietstouring

var toggler = function(element, open, closing) {
    var b = element;

    if(b.hasClass(open)) {    
        b.addClass(closing);
        b.one('webkitTransitionEnd otransitionend oTransitionEnd msTransitionEnd transitionend',   
            function(e) {
           b.removeClass(closing);
          });
    }