/************************************************************************************************************
(C) www.dhtmlgoodies.com, September 2005
************************************************************************************************************/
var initHeight = 0;
var slidedown_direction = 1;
var slidedownContentBox = false;

var slidedownActive = false;
var contentHeight = false;
var slidedownSpeed = 50;
var slidedownTimer = 3;
function slidedown_showHide(html_id)
{
	if(initHeight==0)slidedown_direction=slidedownSpeed; else slidedown_direction = slidedownSpeed*-1;
	if(!slidedownContentBox){
		slidedownContentBox = document.getElementById('emailsubscribebox_' + html_id);
		contentHeight = 100;
	}
	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';
		slidedownContentBox = false;
		initHeight = 0;
		return;
	}
	if(initHeight>=contentHeight){
		slidedownActive = false;
		slidedownContentBox = false;
		return;
	}
	slidedownContentBox.style.height = initHeight + 'px';
	setTimeout('slidedown_showHide_start()',slidedownTimer);
}


function setSlideDownSpeed(newSpeed)
{
	slidedownSpeed = newSpeed;
}