function changeText(elemRef) {
	var divObjs = document.getElementById(elemRef).getElementsByTagName("DIV");

	for(var i=0; i<divObjs.length -1; i++)
	{
		if(divObjs[i].className == 'text')
		{
			if(divObjs[i].innerHTML == 'Show')
			{
				divObjs[i].innerHTML = 'Hide';
			}
			else
			{
				divObjs[i].innerHTML = 'Show';
			}
		}

	}
}


function showTwisty(elemRef) {

	var state = document.getElementById(elemRef).className;

	if (state != 'twistyOpen') {
		document.getElementById(elemRef).className = "twistyOpen";
		changeText(elemRef);
	}
	else
	{
		document.getElementById(elemRef).className = "twistyClose";
		changeText(elemRef);
	}
}

function init() {
	showTwisty('expander_0');
}