//get serverurl
function getBaseURL() { var url = location.href; var baseURL = url.substring(0, url.indexOf('/', 14));  if (baseURL.indexOf('http://localhost') != -1) { var url = location.href; var pathname = location.pathname; var index1 = url.indexOf(pathname); var index2 = url.indexOf("/", index1 + 1); var baseLocalUrl = url.substr(0, index2);  return baseLocalUrl + "/"; } else { return baseURL + "/"; }  }

//validate email address
function isValidEmailAddress(emailAddress) {
	var emailreg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	return emailreg.test(emailAddress);
}