function CleanWindow(url,title,x,y) {
	var options = "toolbar=no,scrollbars=yes,resizable=yes,width=" + x + ",height=" + y;
	window.open(url,title,options);
}
function expand(divName)
{ 
if(document.getElementById(divName).style.display == 'none')
   	document.getElementById(divName).style.display = 'block';
   else document.getElementById(divName).style.display = 'none';

}
function switchSign(link)
{
  if(link.innerHTML == "[+]")
	link.innerHTML = "[--]";
  else link.innerHTML = "[+]";
}