// JavaScript Document
function hideMenu() {
	if(document.all) { //ie4
		document.all.about.style.visibility="hidden"    
	}else if(document.getElementById) { //ie+ns6
		document.getElementById("about").style.visibility="hidden"
	}else{ //ns4
		document.about.visibility="hide" 
	}
 }


function showMenu(which) {
	hideMenu()
	if(document.all) { //ie4
		var d=eval("document.all."+ which +".style")
		d.visibility="visible"
	}else if(document.getElementById) { //ie+ns6
		document.getElementById(which).style.visibility="visible"
	}else{ //ns4
		x=eval("document."+which)
		x.visibility="show"
		}
 } 

function popUp(URL,popName,attributes) {
  window.open(URL,popName,attributes);
}

function JoinList() {
    with (document.emailsignup) {
        re = /.*\@.*\..*/;
        if (!re.test(emails.value)) {
            alert ("You must enter a valid email address.");
            emails.focus();
            //return false; 
        }
        else {
            //return true;
			action = "add_email.php";
			submit();
        }
    }
}

function clearInput(theForm,inputName) {
	theForm.elements[inputName].value ="";
}