/* Создание нового объекта XMLHttpRequest для общения с Web-сервером */
var xmlHttp = false;
/*@cc_on @*/
/*@if (@_jscript_version >= 5)
try {
  xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
  try {
    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (e2) {
   xmlHttp = false;
  }
}
@end @*/
if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
  xmlHttp = new XMLHttpRequest();
}
function openIt() {
currEl = event.srcElement;
if (currEl.className == "subhead") {
newId = currEl.id + "vis" 
imgId = currEl.id
showIt = document.all(newId) ;
if (showIt.style.display == "none") {
showIt.style.display = "" ;
document.images(imgId).src = 'img/minus.gif' 
} else {
showIt.style.display = "none" ;
document.images(imgId).src = 'img/minus.gif' 
}
}
}