/**
     * Pridani ramecku obrazkum
     * autor: Ondrej LUKAS (odik)
     * 
     * getElementsByClassName
     * autor: http://javascript.about.com/library/bldom08.htm
     */
    document.getElementsByClassName = function(cl) {
        var retnode = [];
        var myclass = new RegExp('\\b'+cl+'\\b');
        var elem = this.getElementsByTagName('*');
        for (var i = 0; i < elem.length; i++) {
            var classes = elem[i].className;
            if (myclass.test(classes)) retnode.push(elem[i]);
        }
        return retnode;
    };
    
    specialImageBorder = function() {
        var imgArray = document.getElementsByClassName('blog-img');
        for (var i = 0; i < imgArray.length; i++) {
            var img = imgArray[i].getElementsByTagName('img');
            if (img[0] != null) {
                imgArray[i].style.width  = (img[0].width  + 20) + 'px';
                imgArray[i].style.height = (img[0].height + 20) + 'px';
                imgArray[i].style.marginLeft = ((540 - img[0].width - 20) / 2) + 'px';
                imgArray[i].style.marginBottom = '.7em';
                imgArray[i].style.padding = '0';
                imgArray[i].style.backgroundColor = '#F60';
                
                img[0].style.margin = '1px';
                img[0].style.borderWidth = '9px';
                img[0].style.borderStyle = 'solid';
                img[0].style.borderColor = '#FFF';
            }
        }
    }