function toggle(showHideDiv) {
	var ele = document.getElementById(showHideDiv);
	
	if(ele.style.display == "block") {
    		ele.style.display = "none";
	
  	}
	else {
		ele.style.display = "block";
	
	}
} 

function showOverlay(overlayToShow) {
	var over = document.getElementById(overlayToShow);
	if (over.style.visibility == "visible"){
			over.style.visibility = 'hidden';
	}
	else{
		over.style.visibility = 'visible';
	}
}

function hideOverlay(overlayToHide) {
	var over = document.getElementById(overlayToHide);
	over.style.visibility = 'hidden';
}