// JavaScript Document

function opendiv(id) {
	document.getElementById(id).style.display = 'block';
}

function closediv(id) {
	document.getElementById(id).style.display = 'none';
}

function createAJAX() {
  try {
    AJAXrequest = new XMLHttpRequest();
  } catch (trymicrosoft) {
    try {
      AJAXrequest = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (othermicrosoft) {
      try {
        AJAXrequest = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (failed) {
        AJAXrequest = false;
      }
    }
  }

  if (!AJAXrequest)
    alert("Error initializing XMLHttpRequest!");
}

function openTopMenu(id) {
	if (document.getElementById('drop'+id).style.display != 'block') {
		document.getElementById('drop'+id).style.display = 'block';
		var drop_width = document.getElementById('drop'+id).offsetWidth;
		var parent_width = document.getElementById('top'+id).offsetWidth;
		var parent_left = document.getElementById('top'+id).offsetParent.offsetLeft;
		var parent_right = 970 - parent_left - parent_width;
		var drop_left = parent_left;
		var drop_right = 970 - drop_left - drop_width;
		if (drop_right < 0) {
			document.getElementById('drop'+id).style.marginLeft = drop_right + 'px';
		}
	} else {
		document.getElementById('drop'+id).style.display = 'none';
	}
}