if(document.getElementById){
document.writeln('<style type="text/css" media="all">');
document.writeln('<!--');
document.writeln('.sidehide{display:none;}');
document.writeln('-->');
document.writeln('</style>');
}

function showHide(id){
var disp = document.getElementById(id).style.display;

if(disp == "block"){
document.getElementById(id).style.display = "none";
}else{
document.getElementById(id).style.display = "block";
}
return false;
}