if (document.all) {

m1.style.display='none';
m12.style.display='none';
m121.style.display='none';
m122.style.display='none';
m123.style.display='none';
m13.style.display='none';
m2.style.display='none';
m3.style.display='none';
m4.style.display='none';
m5.style.display='none';

var openMenu = "news"; // this is the menu that's open when the page loads
var openMenuName = "";

namepart="div";

document.all['TreeMenu'].style.visibility = 'visible'

function hideLayer(layerName){
  document.all[ layerName ].style.display="none";
}

function showLayer(layerName){
  document.all[ layerName ].style.display="";
}

function change(par) {
// this function displays and hides TOC section when the user clicks on the heading
openMenuName = namepart + openMenu + "_sub";
var menuName = namepart + par + "_sub";
	    if (menuName == openMenuName) {
      // user clicks on an open menu to close it
      hideLayer(openMenuName);
      openMenu = "none";
       // change old header graphic
    document.all(par).src = ("/images/exp9.gif");
}
else {
      // user clicks on a closed menu: new menu opens
      if (menuName != openMenuName) {

      // open new menu
      showLayer(menuName);
        // change new header graphic
      document.all(par).src = ("/images/collapse9.gif");
      openMenu = par;
}
}
}

function ToggleDisplay(oButton, oItems) {

	if ((oItems.style.display == "") || (oItems.style.display == "none"))	{
		oItems.style.display = "block";
		oButton.src = "/images/collapse9.gif";
	}	else {
		oItems.style.display = "none";
		oButton.src = "/images/exp9.gif";
	}
	return false;
}

function leftnav_keyup() {
	var iKey = window.event.keyCode;
	
	// BUGBUG: IE4 returns BODY instead of element with the focus. Use event object instead
	//var oActive = document.activeElement;
	var oActive = window.event.srcElement;
	
	if( DHTML_LEFT_ARROW == iKey || DHTML_RIGHT_ARROW == iKey )
	{
		if ('clsTocHead' == oActive.className)
		{
			// handle headings that expand/collapse
			HandleKeyForHeading(oActive, iKey);
		}
		else if( "A" == oActive.tagName )
		{
			MoveFocus( oActive, iKey );
		}
	}
	
	return;
}
}