function hidediv(id) {
    //safe function to hide an element with a specified id
    if (document.getElementById) { // DOM3 = IE5, NS6
        document.getElementById(id).style.display = 'none';
    }
    else {
        if (document.layers) { // Netscape 4
            document.id.display = 'none';
        }
        else { // IE 4
            document.all.id.style.display = 'none';
        }
    }
}
function showdiv(id, parent) {
    //safe function to show an element with a specified id
    hidediv('News');
    hidediv('Highlights');
    hidediv('Presentations');
    hidediv('Opinion');
   // hidediv('mostComment');
  //  hidediv('mostRead');
    //hidediv('J');
    //hidediv('S');
 
    try {
        document.getElementById('NewsTab').className = 'viewedTabs';
    }
    catch (err) {
        //Handle errors here
    }

    try {
        document.getElementById('HighlightsTab').className = 'viewedTabs';
    }
    catch (err) {
        //Handle errors here
    }

    try {
        document.getElementById('PresentationTab').className = 'viewedTabs';
    }
    catch (err) {
        //Handle errors here
    }

    try {
        document.getElementById('OpinionTab').className = 'viewedTabs';
    }
    catch (err) {
        //Handle errors here
    }
//    try {
//        document.getElementById('CommentTab').className = 'viewedTabs';
//    }
//    catch (err) {
//        //Handle errors here
//    }
//    try {
//        document.getElementById('readTab').className = 'viewedTabs';
//    }
//    catch (err) {
//        //Handle errors here
//    }  

        //document.getElementById('HighlightsTab').className = 'viewedTabs';
        
        parent.className = 'viewedTabsSelected';

    if (document.getElementById) { // DOM3 = IE5, NS6
        document.getElementById(id).style.display = 'block';
    }
    else {
        if (document.layers) { // Netscape 4
            document.id.display = 'block';

        }
        else { // IE 4
            document.all.id.style.display = 'block';
        }
    }
}