var openImg = new Image();
openImg.src = "/radioshows/images/icoMinus.gif";
var closedImg = new Image();
closedImg.src = "/radioshows/images/icoPlus.gif";

function toggleBranch(branch)
{
	// Toggle the div display
	var objBranch = document.getElementById(branch).style;
	if(objBranch.display=="block")
	{
		objBranch.display="none";
	}
	else
	{
		objBranch.display="block";
	}

	// Toggle the image
	var objImg = document.getElementById(branch + "_img");
	if( objImg.src.indexOf("icoPlus.gif") > -1 )
	{
		objImg.src = openImg.src;
	}
	else
	{
		objImg.src = closedImg.src;
	}
}

function displayBranch(varYear, varMonth)
{	
	// Catch any potential Javascript error(s)
	try
	{
		// Open the Year div display
		var objYearBranch = document.getElementById(varYear).style;
		objYearBranch.display="block";
		// Open the Year image
		objYearImg = document.getElementById(varYear + "_img");
		objYearImg.src = openImg.src;
	
		// Open the Month div display
		var objMonthBranch = document.getElementById(varYear + "_" + varMonth).style;
		objMonthBranch.display="block";
		// Open the Month image
		objMonthImg = document.getElementById(varYear + "_" + varMonth + "_img");
		objMonthImg.src = openImg.src;
	}
	catch ( ex )
	{
	}
}