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    Handlebars.registerHelper ('truncate', function (str, len) {
        if (str.length > len) {
            var new_str = str.substr (0, len+1);

            while (new_str.length) {
                var ch = new_str.substr ( -1 );
                new_str = new_str.substr ( 0, -1 );

                if (ch == ' ') {
                    break;

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/**
 * @author       Rob W <gwnRob@gmail.com>
 * @website      http://stackoverflow.com/a/7513356/938089
 * @version      20120724
 * @description  Executes function on a framed YouTube video (see website link)
 *               For a full list of possible functions, see:
 *               https://developers.google.com/youtube/js_api_reference
 * @param String frame_id The id of (the div containing) the frame
 * @param String func     Desired function to call, eg. "playVideo"
 *        (Function)      Function to call when the player is ready.

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var kkeys = [], konami = "38,38,40,40,37,39,37,39,66,65";

$(document).keydown(function(e) {

  kkeys.push( e.keyCode );

  if ( kkeys.toString().indexOf( konami ) >= 0 ) {

    $(document).unbind('keydown',arguments.callee);

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img {
    filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\' filterRes=\'800\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 10+ */
    filter: gray; /* IE6-9 */
    -webkit-filter: grayscale(100%); /* Chrome 19+ & Safari 6+ */
    -webkit-backface-visibility: hidden; /* Fix for transition flickering */
    -webkit-transition: all 0.5s ease;
       -moz-transition: all 0.5s ease;
        -ms-transition: all 0.5s ease;
         -o-transition: all 0.5s ease;
            transition: all 0.5s ease;

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function urlify(text){
    var urlRegex = /(([a-z]+:\/\/)?(([a-z0-9\-]+\.)+([a-z]{2}|aero|arpa|biz|com|coop|edu|gov|info|int|jobs|mil|museum|name|nato|net|org|pro|travel|local|internal))(:[0-9]{1,5})?(\/[a-z0-9_\-\.~]+)*(\/([a-z0-9_\-\.]*)(\?[a-z0-9+_\-\.%=&]*)?)?(#[a-zA-Z0-9!$&'()*+.=-_~:@/?]*)?)(\s+|$)/gi;
    return text.replace(urlRegex, function(url){
        return '<a href="' + url + '">' + url + '</a>';
    });
};

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<script type="text/javascript">
function youtube_parser(url){
    var regExp = /^.*((youtu.be\/)|(v\/)|(\/u\/\w\/)|(embed\/)|(watch\?))\??v?=?([^#\&\?]*).*/;
    var match = url.match(regExp);
    if (match&&match[7].length==11){
        return match[7];
    }else{
        alert("Url incorrecta");
    }
}

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// FROM http://orderedlist.com/blog/articles/live-search-with-quicksilver-style-for-jquery
(function($) {  
    var self = null;
     
    $.fn.liveUpdate = function(list) {        
            return this.each(function() {
                    new $.liveUpdate(this, list);
            });
    };
    

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	$.preloadImages = function(){
		for(var i = 0; i < arguments.length; i++){
			$("<img />").attr("src", arguments[i]);
		}
	};

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(function($){
	
})(jQuery);

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// Comparison Helper for handlebars.js
// Pass in two values that you want and specify what the operator should be
// e.g. {{#compare val1 val2 operator="=="}}{{/compare}}

Handlebars.registerHelper('compare', function(lvalue, rvalue, options) {

	if (arguments.length < 3)
	    throw new Error("Handlerbars Helper 'compare' needs 2 parameters");

	operator = options.hash.operator || "==";