function sure(url)
{
if(confirm('Are you sure?'))
{
window.location = url;
}
}
function wait(btn,frm)
{
document.getElementById(btn).value = 'please wait...';	
document.getElementById(btn).disabled = true;
document.getElementById(frm).submit();
}

function toggle(what)
{
var status = document.getElementById(what).style.display;
document.getElementById(what).style.display = (status == 'none') ? 'block' : 'none';
}