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(src, popup_src)
{
document.getElementById('mainimage').style.background = 'url('+src+')';
document.getElementById('mainimage').style.backgroundPosition = 'center center';
document.getElementById('mainimage').style.backgroundRepeat = 'no-repeat';
document.getElementById('popup_link').href = 'javascript:Zoom(\''+popup_src+'\')';
}