if (typeof sz_hasrun == 'undefined') {
	sz_hasrun = 1;

document.addEventListener('DOMContentLoaded',function(){

	if (typeof jQuery == 'undefined') {   
		var script = document.createElement('script');
		script.type = "text/javascript";

		if (script.readyState) { //IE
            script.onreadystatechange = function () {
                if (script.readyState == "loaded" || script.readyState == "complete") {
                    script.onreadystatechange = null;
                    sz_callback();
                }
            };
        } else { //Others
            script.onload = function () {
                sz_callback();
            };
        }

		script.src = "//ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js";
		document.body.appendChild(script);
	} else sz_callback();

});

}

function sz_callback() {

jQuery.wordStats = {

    unsortedWords: null,
    sortedWords: null,
    topWords: null,
    topWeights: null,
    _computed: false,

    //add words from provided string to unsortedWords array
    addWords: function(str, weight) {
        if(str && str.length > 1) {
            var w = this.splitWords(str.toLowerCase());
            for(var x = 0, y = w.length; x < y; x++) {
                word = w[x];
                if(word.length > 2 && !this.stopWords[word]) {
                    word = '_' + word;
                    if(this.unsortedWords[word])
                        this.unsortedWords[word] += weight;
                    else this.unsortedWords[word] = weight;
                }
            }
        } 
    },

    //add words from text nodes only
    addWordsFromTextNodes: function(node, weight) {
        var nodes = node.childNodes;
        for(var i = 0, j = nodes.length; i < j; i++) {
            if(nodes[i].nodeType == 3) this.addWords(nodes[i].nodeValue, weight);
        }
    },
    
    //accept Latin-1 basic + Latin-1 extended characters
    testChar: function(c) {
        return((c >= 97 && c <= 122)
            || (c >= 128 && c <= 151)
            || (c >= 160 && c <= 164)
            || (c >= 48 && c <= 57)
            || (c >= 224 && c <= 246)
            || (c >= 249 && c <= 255));
    },

    //split words
    splitWords: function(words) {
        var w = new Array(), str = '';
        for(var i = 0, j = words.length; i < j; i++) {
            c = words.charCodeAt(i);
            if(this.testChar(c)) str += words.substring(i, i + 1);
            else {
                w.push(str);
                str = '';
            }
        }
        
        if(str.length > 0) w.push(str);
        return(w);
    },

    //main function: compute words from web page / element
    computeWords: function(elem) {
        
        if(!elem) elem = window.document;
        
        this.unsortedWords = new Array();
        
        this.addWords(jQuery('title', elem).text(), 20);
        
        wordstats = this;
       
        jQuery('h1', elem).each(function() {
            wordstats.addWordsFromTextNodes(jQuery(this).get(0), 15);
        });

        jQuery('h2', elem).each(function() {
            wordstats.addWordsFromTextNodes(jQuery(this).get(0), 10);
        });

        jQuery('h3, h4, h5, h6', elem).each(function() {
            wordstats.addWordsFromTextNodes(jQuery(this).get(0), 5);
        });

        jQuery('strong, b, em, i', elem).each(function() {
        	wordstats.addWordsFromTextNodes(jQuery(this).get(0), 3);
        });

        jQuery('p, div, th, td, li, a, span', elem).each(function() {
        	wordstats.addWordsFromTextNodes(jQuery(this).get(0), 2);
        });

        jQuery('img', elem).each(function() {
            wordstats.addWords(jQuery(this).attr('alt'), 1);
            wordstats.addWords(jQuery(this).attr('title'), 1);
        });
        
        this._computed = true;
    },
    
    //compute 'top' words: words which occur the most frequently
    computeTopWords: function(count, elem) {
    
        if(!this._computed) this.computeWords(elem);
    
        this.topWords = new Array();
        this.topWeights = new Array();
        
        this.topWeights.push(0);
        for(word in this.unsortedWords) {
            for(var i = 0; i < count; i++) {
                if(this.unsortedWords[word] > this.topWeights[i]) {
                    this.topWeights.splice(i, 0, this.unsortedWords[word]);
                    this.topWords.splice(i, 0, word);
                    break;
                }
            }
        }
    },
    
    //sort the unsortedWords array, based on words 'weights' descending
    sortWords: function() {
        this.sortedWords = new Array();
        //sort the associative array desc
        i = 0;
        for(word in this.unsortedWords) { this.sortedWords[i] = word; i++; }
        this.sortedWords.sort(function(a, b) {
                return wordstats.unsortedWords[b] - wordstats.unsortedWords[a];
            }
        );
    },
    
    //release memory
    clear: function() {
        this.unsortedWords
        = this.sortedWords
        = this.topWords
        = this.topWeights
        = null;
        this._computed = false;
    }
};

jQuery.wordStats.stopWords = {
    'the': true,
    'that': true,
    'you': true,
    'your': true,
    'for': true,
    'are': true,
    'use': true,
    'our': true,
    'photo': true,
    'picture': true,
    'photos': true,
    'pictures': true,
    'stock': true,
    'image': true,
    'images': true,
    'quality': true,
    'video': true,
    'vector': true,
    'videos': true,
    'vectors': true,
    'footage': true,
    'jpeg': true,
    'royalty': true,
    'symzio': true,
    'symbiostock': true,
    'and': true
};

	jQuery(document).ready(function( $ ) {
		var sz_title="";
		//if (typeof document.getElementsByTagName("title")[0] != 'undefined') sz_title = document.getElementsByTagName("title")[0].innerHTML;
		$.wordStats.computeTopWords(2);
		var words = $.wordStats.topWords.join(" ");
		words = words.replace("_", "");
		$.wordStats.clear();

		$(".sz_widget").each(function(){
			$(this).load('//www.symzio.com/q?context=' + $(this).data('context') + '&h=' + $(this).data('h') + '&w=' + $(this).data('w') + '&maxnum=' + $(this).data('maxnum') + '&ack=' + $(this).data('ack') + '&id=' + $(this).data('cclass') + '&q=' + encodeURIComponent(words), function () {
				$(".sz_res_img").each(function(){
					var bgbox = $( this ).next( ".symzio_searchresults_item" );
					var img = new Image();
					$(img).hide();
					img.src = $(this).attr("src");
					$(img).load(function() {
						bgbox.fadeIn();
					});
				});
			});
		});
	});
}