// Slidedown Script for Global Navigator Objects

	setSlideDownSpeed(5);
	
	var initHeight = 0;
	var slidedown_direction = 1;
	var slidedownContentBox = false;
	var slidedownContent = false;
	var slidedownActive = false;
	var contentHeight = false;
	var slidedownSpeed = 15; 	// Higher value = faster script
	var slidedownTimer = 30;	// Lower value = faster script
	function slidedown_showHide()
	{
		if(initHeight==0)slidedown_direction=slidedownSpeed; else slidedown_direction = slidedownSpeed*-1;
		if(!slidedownContentBox){
			slidedownContentBox = document.getElementById('globalNav_contentBox');
			slidedownContent = document.getElementById('globalNav_content');
			contentHeight = document.getElementById('globalNav_content').offsetHeight;
		}
		slidedownContentBox.style.visibility='visible';
		slidedownActive = true;
		slidedown_showHide_start();
	}
	function slidedown_showHide_start()
	{
		if(!slidedownActive)return;
		initHeight = initHeight/1 + slidedown_direction;
		if(initHeight <= 0){
			slidedownActive = false;	
			slidedownContentBox.style.visibility='hidden';
			initHeight = 0;
		}
		if(initHeight>contentHeight){
			slidedownActive = false;	
		}
		slidedownContentBox.style.height = initHeight + 'px';
		slidedownContent.style.top = initHeight - contentHeight + 'px';
		setTimeout('slidedown_showHide_start()',slidedownTimer);	// Choose a lower value than 10 to make the script move faster
	}
	
	function setslidedownWidth(newWidth)
	{
		document.getElementById('globalNav_slidedown').style.width = newWidth + 'px';
		document.getElementById('globalNav_contentBox').style.width = newWidth + 'px';
	}
	
	function setSlideDownSpeed(newSpeed)
	{
		slidedownSpeed = newSpeed;
		
	}

	function changepic(img_name,img_src) {
		document[img_name].src=img_src;
	}

// Slidedown Script for Non-Global Navigator Objects

	var timerlen = 5;
	var slideAniLen = 250;

	var timerID = new Array();
	var startTime = new Array();
	var obj = new Array();
	var endHeight = new Array();
	var moving = new Array();
	var dir = new Array();

	function slidedown(objname){
		if(moving[objname])
				return;

		if(document.getElementById(objname).style.display != "none")
				return; // cannot slide down something that is already visible

		moving[objname] = true;
		dir[objname] = "down";
		startslide(objname);
	}

	function slideup(objname){
		if(moving[objname])
				return;

		if(document.getElementById(objname).style.display == "none")
				return; // cannot slide up something that is already hidden

		moving[objname] = true;
		dir[objname] = "up";
		startslide(objname);
	}

	function startslide(objname){
		obj[objname] = document.getElementById(objname);

		endHeight[objname] = parseInt(obj[objname].style.height);
		startTime[objname] = (new Date()).getTime();

		if(dir[objname] == "down"){
				obj[objname].style.height = "1px";
		}

		obj[objname].style.display = "block";

		timerID[objname] = setInterval('slidetick(\'' + objname + '\');',timerlen);
	}

	function slidetick(objname){
		var elapsed = (new Date()).getTime() - startTime[objname];

		if (elapsed > slideAniLen)
				endSlide(objname)
		else {
				var d =Math.round(elapsed / slideAniLen * endHeight[objname]);
				if(dir[objname] == "up")
						d = endHeight[objname] - d;

				obj[objname].style.height = d + "px";
		}

		return;
	}

	function endSlide(objname){
		clearInterval(timerID[objname]);

		if(dir[objname] == "up")
				obj[objname].style.display = "none";

		obj[objname].style.height = endHeight[objname] + "px";

		delete(moving[objname]);
		delete(timerID[objname]);
		delete(startTime[objname]);
		delete(endHeight[objname]);
		delete(obj[objname]);
		delete(dir[objname]);

		return;
	}

	function toggleSlide(objname){
	  if(document.getElementById(objname).style.display == "none"){
		// div is hidden, so let's slide down
		slidedown(objname);
	  }else{
		// div is not hidden, so slide up
		slideup(objname);
	  }
	}