function getObj(name) {
	if (document.getElementById) {
		obj = document.getElementById(name);
	} else if (document.all) {
		obj = document.all[name];
	} else if (document.layers) {
		obj = document.layers[name];
	}

	return obj;
}

function toggleDiv(obj) {
	var layer = getObj(obj);
	layer.style.display = (layer.style.display == "block" ? "":"block");
}

function toggleDivOff(obj) {
	var layer = getObj(obj);
	layer.style.display = "none";
}

function toggleDivOn(obj) {
	var layer = getObj(obj);
	layer.style.display = "";
}

function toggleNextEmailBox(index) {
	var field = getObj("email_value_" + index);

	if (field.value.length == "") {
		toggleDivOff("email_" + (index + 1));
		var field2 = getObj("email_value_" + (index + 1));
		field2.value = "";
	} else {
		toggleDivOn("email_" + (index + 1));
	}
}

function toggleDivHeight(obj){
	var layer = getObj(obj);
	if (layer.style.overflow == ""){
		layer.style.overflow = "hidden";
	}
	if (layer.style.overflow == "hidden"){
		layer.style.overflow = "visible";
		layer.style.height = "inherit";
	}else{
		layer.style.overflow = "hidden";
		layer.style.height = "250px";
	}
}