//
//
//

function getElementsByClass(searchClass,node,tag)
{
        var classElements = new Array();
        if ( node == null )
                node = document;
        if ( tag == null )
                tag = '*';

        var els = node.getElementsByTagName(tag);
        var elsLen = els.length;
        var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
        for (i = 0, j = 0; i < elsLen; i++) {
                if ( pattern.test(els[i].className) ) {
                        classElements[j] = els[i];
                        j++;
                }
        }

        return classElements;
}

function getQueryVariable(variable)
{
    var query = window.location.search.substring(1);
    var vars = query.split("&");

    for (i = 0;i < vars.length; i++) {
        var pair = vars[i].split("=");
        if (pair[0] == variable) {
            return pair[1];
        }
    }
    return (false);
}