function toggle(divObjStr) {
	var visible = 'block'
	var invisible = 'none'
	
	
	divObj = document.getElementById(divObjStr)
	indicatorObj = document.getElementById(divObjStr + "_indicator")
	
	if (divObj.style.display == visible) {
		divObj.style.display = invisible
		indicatorObj.innerHTML = "[+]"
	} else {
		divObj.style.display = visible
		indicatorObj.innerHTML = "[-]"
	}
}