function advertheader (myid, mytitle) {
document.getElementById(myid).innerHTML = '<h1>' + mytitle + '</h1>';
}



function show_info (id) {
document.getElementById(id).style.overflow   = 'visible';
document.getElementById(id).style.width      = '600px';
document.getElementById(id).style.height     = '120px';
document.getElementById(id).style.background = '#ffffff';
document.getElementById(id).style.padding    = '5px';
document.getElementById(id).style.border     = '1px solid gray';
document.getElementById(id).style.zIndex    = '1';
}


function hide_info (id) {
document.getElementById(id).style.overflow = 'hidden';
document.getElementById(id).style.width    = '15px';
document.getElementById(id).style.height   = '15px';
document.getElementById(id).style.background = 'Transparent';
document.getElementById(id).style.padding  = '0px';
document.getElementById(id).style.border   = '0px solid gray';
document.getElementById(id).style.zIndex    = '0';
}