function hideDiv(id) {
	document.getElementById('' + id).style.visibility = 'hidden';
}

function showDiv(id) {
	document.getElementById('' + id).style.visibility = 'visible';
}  

function popitup(url) {
    newwindow=window.open(url,'name','height=350,width=600,scrollbars=yes');
    if (window.focus) {newwindow.focus()}
    return false;
    }