var newwindow = '';

function followLink(url, parameters, target)
{
    if(parameters == null) parameters = 'scrollbars=1,resizable=1,height=480,width=640';
    if(target != "_blank")
    {
        document.location.href=url;
        return false;
    }
    if (!newwindow.closed && newwindow.location)
    {
        newwindow.location.href = url;
    }
    else
    {
        newwindow=window.open(url,'name',parameters);
        if (!newwindow.opener) newwindow.opener = self;
    }
    if (window.focus) {
        newwindow.focus()
    }
    return false;
}