function addEvent( obj, type, fn ) {
        if (obj.addEventListener)
                obj.addEventListener(type, fn, false);
        else if (obj.attachEvent) 
                obj.attachEvent('on' + type, function() { return fn.apply(obj, new Array(window.event));});
};

function getId( elem ) {
    return document.getElementById(elem);
};

function cssjs(a,o,c1,c2){
    switch (a){
        case 'add':
            if(!cssjs('check',o,c1)){o.className+=o.className?' '+c1:c1;}
        break;
        case 'remove':
            var rep=o.className.match(' '+c1)?' '+c1:c1;
            o.className=o.className.replace(rep,'');
        break;
        case 'check':
            return new RegExp("(|\\s)" + c1 + "(\\s|$)").test(o.className)
        break;
    }
};

function getStyle( elem, name ) {
    if (elem.style[name])
        return elem.style[name];
    else if (elem.currentStyle)
        return elem.currentStyle[name];
    else if (document.defaultView && document.defaultView.getComputedStyle) {
        name = name.replace(/([A-Z])/g,"-$1");
        name = name.toLowerCase();
        var s = document.defaultView.getComputedStyle(elem,"");
        return s && s.getPropertyValue(name);
    } else
    return null;
};

function toggle(obj) {
    obj.style.display = (getStyle( obj, 'display') == 'none' ? 'block' : 'none' );
};

function next( elem ) {
    do {
        elem = elem.nextSibling;
    } while ( elem && elem.nodeType != 1 );
    return elem;
};

function stopDefault( e ) {
    if ( e && e.preventDefault )
        e.preventDefault();
    else
        window.event.returnValue = false;
    return false;
};


function tabs(obj,style,status){
        if(typeof(obj) != 'string') return ;
        var currentStyle = style;
        var status = status-1;
        var currentLink = null;
        var currentContent = null;
        var obj = document.getElementById(obj);
		if (!obj) return ;
        var lis = obj.getElementsByTagName("LI");
        for (var i = 0,j=lis.length; i<j ; i++) {
               var Links = lis[i].getElementsByTagName("a")[0];
               var href =  Links.href.toString().match(/#(.*)/)[1];
               getId( href ).style.display = 'none';
               if(i == status){
                   currentLink = Links;
                   currentContent = getId( href );
                   getId( href ).style.display = 'block';
                   cssjs('add',Links,currentStyle);
                 }
               Links.onmouseover = function tabs(e){
                   cssjs('remove',currentLink,currentStyle);
                   currentContent.style.display = 'none';
                   cssjs('add',this,currentStyle);    
                   var herf=this.href.toString().match(/#(.*)/)[1];
                   getId( herf ).style.display = 'block';
                   currentLink = this;
                   currentContent = getId( herf );
                   stopDefault( e )
               }
           }
       }