/*
Global "swap" holder
Use value, null, if no layer initially visible
*/
var currLayerId = "dcopyC";

function togLayer(id)
{
	if(currLayerId) setDisplay(currLayerId, "none");
	if(id)setDisplay(id, "block");
	currLayerId = id;
}

function setDisplay(id,value)
{
	var elm = document.getElementById(id);
	elm.style.display = value;
}



var slideDownInitHeight = new Array();
var slidedown_direction = new Array();
var slidedownActive = false;
var contentHeight = false;
var slidedownSpeed = 3; 	// Higher value = faster script
var slidedownTimer = 7;	// Lower value = faster script
	
	
	
function slidedown_showHide(boxId)
{
	if(!slidedown_direction[boxId])slidedown_direction[boxId] = 1;
	if(!slideDownInitHeight[boxId])slideDownInitHeight[boxId] = 0;
	if(slideDownInitHeight[boxId]==0)slidedown_direction[boxId]=slidedownSpeed; else slidedown_direction[boxId] = slidedownSpeed*-1;
	slidedownContentBox = document.getElementById(boxId);
	var subDivs = slidedownContentBox.getElementsByTagName('DIV');
	for(var no=0;no<subDivs.length;no++){
	if(subDivs[no].className=='dhtmlgoodies_content')slidedownContent = subDivs[no];	
	}
	contentHeight = slidedownContent.offsetHeight;
	slidedownContentBox.style.visibility='visible';
	slidedownActive = true;
	slidedown_showHide_start(slidedownContentBox,slidedownContent);
}

function slidedown_showHide_start(slidedownContentBox,slidedownContent)
{
	if(!slidedownActive)return;
	slideDownInitHeight[slidedownContentBox.id] = slideDownInitHeight[slidedownContentBox.id]/1 + slidedown_direction[slidedownContentBox.id];
	if(slideDownInitHeight[slidedownContentBox.id] <= 0){
		slidedownActive = false;	
		slidedownContentBox.style.visibility='hidden';
		slideDownInitHeight[slidedownContentBox.id] = 0;
	}
	if(slideDownInitHeight[slidedownContentBox.id]>contentHeight){
		slidedownActive = false;	
	}
	slidedownContentBox.style.height = slideDownInitHeight[slidedownContentBox.id] + 'px';
	slidedownContent.style.top = slideDownInitHeight[slidedownContentBox.id] - contentHeight + 'px';

	setTimeout('slidedown_showHide_start(document.getElementById("' + slidedownContentBox.id + '"),document.getElementById("' + slidedownContent.id + '"))',slidedownTimer);	// Choose a lower value than 10 to make the script move faster
}

function setSlideDownSpeed(newSpeed)
{
	slidedownSpeed = newSpeed;
}