///////////////////////////////////////////////////////////////////////////////

  function resetTimer(){
  	clearTimeout(timerID);
  }

///////////////////////////////////////////////////////////////////////////////

	function getButtonNum(buttonID){
		// Get the number following the underscore in the button ID passed to function
		buttonIDarray = buttonID.split("_");
		dropNum = buttonIDarray[1];
		return(dropNum);
	}

///////////////////////////////////////////////////////////////////////////////

	function showDrop(buttonID) {

		dropNum = getButtonNum(buttonID);

		// Start by hiding all drop menus
		hideDrop('all');

		// Set rollover class of menu option
		if(buttonID == lastMenuItem){
			MM_findObj(buttonID).className = lastOverClass;
		}
		else{
			MM_findObj(buttonID).className = overClass;
		}

		// If menu item has no drop associated with it, simply return from here
		if(!(MM_findObj(dropIDprefix+dropNum))){
			return;
		}
	
		// May be problems if using IE on Mac (need to test)
		// if (IsMac && IE){return;}

		// Get position and width of hovered button
    var buttonOffsetLeft=MM_findObj(buttonID).offsetLeft;
		var buttonOffsetTop=MM_findObj(buttonID).offsetTop;
		// offsetWidth is read-only.  Must be set using setAttribute("width")
		// var buttonWidth=MM_findObj(buttonID).style.offsetWidth;


		var activeDrop = MM_findObj(dropIDprefix+dropNum);

		// Set x,y pos of drop menu ensuring that it doesn't overlap right edge of site
		activeDropLeftPos = (offset == "-") ? eval(buttonOffsetLeft-dropMenuHorizontalOffset) : eval(buttonOffsetLeft+dropMenuHorizontalOffset);		
		activeDrop.style.left = (activeDropLeftPos > maxDropPos) ? maxDropPos+'px' : activeDropLeftPos+'px';
		activeDrop.style.top = eval(buttonOffsetTop+dropMenuVerticalOffset)+'px';
		activeDrop.style.display='block';
		
		// Reset timer
		resetTimer();
	}


///////////////////////////////////////////////////////////////////////////////

	function hideDrop(buttonID){
		if(buttonID.toLowerCase()=='all'){
			// Hide ALL drops immediately
			// line moved to dropMenuConfig.js ---> // var drops = getElementsByClassName(MM_findObj(dropContainer), "div", dropMenuClass);
			for (i=0; i<drops.length; i++) {
				drops[i].style.display = 'none';
			}
			var headerMenuOptions = document.getElementById(tmoContainer);
			var tmos = headerMenuOptions.getElementsByTagName("a");
			for (var i=0; i<tmos.length; i++) {
				if(tmos[i].className == lastBaseClass || tmos[i].className == lastOverClass){
				  tmos[i].className = lastBaseClass;
				}
			  else{
					tmos[i].className = baseClass;
				}
			}
		}
		else{
			dropNum = getButtonNum(buttonID);
		  // Hide specified drop after duration: menuHideDelay
			clearTimeout(timerID);
			// If menu item has no drop associated with it,
			//    simply reset menu option color and return from here
			if(!(MM_findObj(dropIDprefix+dropNum))){
				if(buttonID == lastMenuItem){
					MM_findObj(buttonID).className=lastBaseClass;
				}
				else{
					MM_findObj(buttonID).className=baseClass;
				}
				return;
		  }
			classToSet = (buttonID == lastMenuItem) ? lastBaseClass : baseClass;
				
		  timerID=setTimeout("MM_findObj('"+dropIDprefix+dropNum+"').style.display='none'; MM_findObj('"+buttonID+"').className='"+classToSet+"';",menuHideDelay);
		}
	}

///////////////////////////////////////////////////////////////////////////////

	function lockDrop(dropMenu){
		// parameter "dropMenu" not used at this time
		resetTimer();
	}

///////////////////////////////////////////////////////////////////////////////

function releaseDrop(dropMenu){
		buttonNum = getButtonNum(dropMenu);
		classToSet = (tmoIDprefix+buttonNum == lastMenuItem) ? lastBaseClass : baseClass;		
		timerID=setTimeout("MM_findObj('"+dropMenu+"').style.display='none'; MM_findObj('"+tmoIDprefix+buttonNum+"').className='"+classToSet+"';",menuHideDelay);
	}

///////////////////////////////////////////////////////////////////////////////

/*
    Written by Jonathan Snook, http://www.snook.ca/jonathan
    Add-ons by Robert Nyman, http://www.robertnyman.com
*/
function getElementsByClassName(oElm, strTagName, oClassNames){
	var arrElements = (strTagName == "*" && document.all)? document.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	var arrRegExpClassNames = new Array();
	if(typeof oClassNames == "object"){
		for(var i=0; i<oClassNames.length; i++){
			arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)"));
		}
	}
	else{
		arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)"));
	}
	var oElement;
	var bMatchesAll;
	for(var j=0; j<arrElements.length; j++){
		oElement = arrElements[j];
		bMatchesAll = true;
		for(var k=0; k<arrRegExpClassNames.length; k++){
			if(!arrRegExpClassNames[k].test(oElement.className)){
				bMatchesAll = false;
				break;
			}

		}
		if(bMatchesAll){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}

///////////////////////////////////////////////////////////////////////////////

// Array support for the push method in IE 5
Array.prototype.push = ArrayPush;
function ArrayPush(value){
	this[this.length] = value;
}