//Adapted from http://www.netlobo.com/div_hiding.html
function toggleLayer(whichLayer){
	if (document.getElementById){
		// this is the way the standards work
		var style2 = document.getElementById(whichLayer).style;
		style2.display = style2.display == "block" ? "none":"block";
	}else if (document.all){
		// this is the way old msie versions work
		var style2 = document.all[whichLayer].style;
		style2.display = style2.display == "block" ? "none":"block";
	}
}

function validateEmail(email){

	if(email.indexOf("@") == -1){
		alert("Please enter a valid email address.");
		return false;
	}else{
		return true;
	}

}