var uidDefault = "Enter user name";
var pwdDefault = "Enter password";

function validateLogin(form)
{
	var usernameField = form.username;
	var passwordField = form.password;
	
	if (usernameField && passwordField) {
		var usernameValue = usernameField.value;
		var passwordValue = passwordField.value;
		
		if ((usernameValue == "") || (usernameValue == uidDefault)) {
			if ((passwordValue == "") || pwdDefault) {
				alert("Please enter your User Name and Password.");
			} else {
				alert("Please enter your User Name.");
			}
			usernameField.focus();
			return false;
		}
		else if ((passwordValue == "") || (passwordValue == pwdDefault)) {
			alert("Please enter your Password.");
			passwordField.focus();
			return false;
		}
	}
	return true;
}

function clearField(fldObj) {
	if ((fldObj.value == uidDefault) || (fldObj.value == pwdDefault)){
		fldObj.value = "";
	}
}
function extractCookieValue(val) {
  if ((endOfCookie = document.cookie.indexOf(";", val)) == -1) {
     endOfCookie = document.cookie.length;
  }
  return unescape(document.cookie.substring(val,endOfCookie));
}

function ReadCookie(cookiename) {
  var numOfCookies = document.cookie.length;
  var nameOfCookie = cookiename + "=";
  var cookieLen = nameOfCookie.length;
  var x = 0;
  while (x <= numOfCookies) {
        var y = (x + cookieLen);
        if (document.cookie.substring(x, y) == nameOfCookie)
           return (extractCookieValue(y));
           x = document.cookie.indexOf(" ", x) + 1;
           if (x == 0){
              break;
           }
  }
  return (null);
}

function createCookie(name, value, expiredays) {
  var todayDate = new Date();
  todayDate.setDate(todayDate.getDate() + expiredays);
  document.cookie = name + "=" + value + "; expires=" +todayDate.toGMTString() + ";"
}

function setUsernameCookie() 
{
	
    var userCookie = ReadCookie("_Remember_UserName");
	var userNameText = document.getElementById('uid');
 	if  (userCookie != null)
	{
    userNameText.value = userCookie;
	}

}