function $() {
    var elements = new Array();
    for(var i = 0; i < arguments.length; i++){
        var element = arguments[i];
        if(typeof element == 'string')
            element = document.getElementById(element);
        if(arguments.length == 1)
            return element;
        elements.push(element);
    }
    return elements;
}

function addEvent(elm, evType, fn, useCapture) {
	if (elm.addEventListener) {
		elm.addEventListener(evType, fn, useCapture);
		return true;
	}
	else if (elm.attachEvent) {
		var r = elm.attachEvent('on' + evType, fn);
		return r;
	}
	else {
		elm['on' + evType] = fn;
	}
}

function insertAfter(parent, node, referenceNode) {
    parent.insertBefore(node, referenceNode.nextSibling);
}

function getElementsByClassName(oElm,strTagName,oClassNames){var arrElements=(strTagName=="*" && oElm.all)?oElm.all:oElm.getElementsByTagName(strTagName);var arrReturnElements=new Array();var arrRegExpClassNames=new Array();if(typeof oClassNames=="object"){for(var i=0; i<oClassNames.length; i++){arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)"));}}else{arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)"));}var oElement;var bMatchesAll;for(var j=0; j<arrElements.length; j++){oElement=arrElements[j];bMatchesAll=true;for(var k=0; k<arrRegExpClassNames.length; k++){if(!arrRegExpClassNames[k].test(oElement.className)){bMatchesAll=false;break;}}if(bMatchesAll){arrReturnElements.push(oElement);}}return (arrReturnElements)}

function getCookie( name ) {
    var start = document.cookie.indexOf( name + "=" );
    var len = start + name.length + 1;
    if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {
        return null;
    }
    if ( start == -1 ) return null;
    var end = document.cookie.indexOf( ';', len );
    if ( end == -1 ) end = document.cookie.length;
    return unescape( document.cookie.substring( len, end ) );
}

function setCookie( name, value, expires, path, domain, secure ) {
    var today = new Date();
    today.setTime( today.getTime() );
    if ( expires ) {
        expires = expires * 1000 * 60 * 60 * 24;
    }
    var expires_date    = new Date( today.getTime() + (expires) );
    var cookie_string   = name+'='+escape( value ) +
        ( ( expires ) ? ';expires='+expires_date.toGMTString() : '' ) + //expires.toGMTString()
        ( ( path ) ? ';path=' + path : '' ) +
        ( ( domain ) ? ';domain=' + domain : '' ) +
        ( ( secure ) ? ';secure' : '' );
    document.cookie = cookie_string;
}

function deleteCookie( name, path, domain ) {
    if ( getCookie( name ) ) document.cookie = name + '=' +
            ( ( path ) ? ';path=' + path : '') +
            ( ( domain ) ? ';domain=' + domain : '' ) +
            ';expires=Thu, 01-Jan-1970 00:00:01 GMT';
}