function sv(var1)
{
    div = document.getElementById(var1);
    if (div.style.display == 'block')  { div.style.display='none' }
	else { div.style.display='block'; };
}

function ctc() {
	window.open('telephone.php','Rappel','width=465,height=300,scrollbars=no,status=yes,resizable=no')
}