var epidemiologyPath = '/mskcc_resources/images/epidemiology/';

// Cache rollover images
var epidemiologyImages = ['biostatistics', 'computing_resource', 'epidemiology','health_outcomes'];
for(var i=0;i<epidemiologyImages.length;i++){
	cacheImage(epidemiologyImages[i], epidemiologyPath + 'on/' + epidemiologyImages[i] + '.jpg', epidemiologyPath + 'off/' + epidemiologyImages[i] + '.jpg');
}

// Menu Timer
var _epidemiologyTimer;
function epidemiologyOut(){
	clearTimeout(_epidemiologyTimer);
	_epidemiologyTimer = setTimeout("epidemiologyOff()", 500);
}
function epidemiologyOver(){
	clearTimeout(_epidemiologyTimer);
}

var _currentEpidemiologyID;
function epidemiologyOn(ID){
	// Cancel Timer
	epidemiologyOver();

	// If this is the current menu exit
	if(_currentEpidemiologyID == ID){return;}

	// Hide current menu
	epidemiologyOff();

	// Set current Menu
	_currentEpidemiologyID = ID;

	// Show image and menu
	imageOn(ID);
	$(ID + '_menu').style.display = 'block';
}

function epidemiologyOff(){
	// If no current menu exit
	if(!_currentEpidemiologyID){return;}

	// Hide current image and menu
	imageOff(_currentEpidemiologyID);
	$(_currentEpidemiologyID + '_menu').style.display = 'none';

	// Clear curent menu
	_currentEpidemiologyID = null;
}