var SymRealOnLoad;
var SymRealOnUnload;

function SymError()
{
  return true;
}

window.onerror = SymError;

var SymRealWinOpen = window.open;

function SymWinOpen(url, name, attributes)
{
  return (new Object());
}

window.open = SymWinOpen;

function SymOnUnload()
{
  window.open = SymWinOpen;
  if(SymRealOnUnload != null)
 SymRealOnUnload();
}

function SymOnLoad()
{
  if(SymRealOnLoad != null)
 SymRealOnLoad();
  window.open = SymRealWinOpen;
  SymRealOnUnload = window.onunload;
  window.onunload = SymOnUnload;
}

SymRealOnLoad = window.onload;
window.onload = SymOnLoad;

function isValidEmail(m) {
	m=m.toLowerCase();
	return (m.match(/^([a-z\d][-\w_%\.]*)?[a-z\d]@[a-z\d][-a-z\d_\.]*[a-zA\d]+\.[a-z]{2,4}$/)) ? true : false;
}

function CheckEmail(o){
	if(!isValidEmail(o.email.value)){
		alert("Please enter a valid email address.");
		o.email.focus();
		return false;
	}else{
		return true;
	}
}