$(document).ready(function() {
	mainmenu();
});

function mainmenu(){
	$(" #topNav ul ").css({display: "none"}); // Opera Fix
	$(" #topNav li").hover(function(){
			$(this).find('ul:first').css({visibility: "visible",display: "none"}).show(400);
			},function(){
			$(this).find('ul:first').css({visibility: "hidden"});
			});
}

function isValidEmail(strEmail){
  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
  
	// search email text for regular exp matches
  if (strEmail.search(validRegExp) == -1) {
  	return false;
  } 
  return true; 
}