function hidebutton(btn,frm)
{
document.getElementById(btn).disabled = true;
document.getElementById(btn).value = '..Please wait...';
document.getElementById(frm).submit();
}
function sure(url)
{
if(confirm('ARE YOU SURE?'))
{
window.location = url;
}
}
function toggle(what)
{
var status = document.getElementById(what).style.display;
if(status == 'none')
{
document.getElementById(what).style.display = 'block';
}
else
{
document.getElementById(what).style.display = 'none';
}
}

function switch_image(img, src)
{
document.getElementById(img).src = src;
}