function validateForm() {

	var errorDiv = document.getElementById("errorBlock");
	var email = rtrim(document.getElementById("txtEmail").value);
	var pwd = rtrim(document.getElementById("txtPwd").value);
	
    var loginEmailLbl = document.getElementById("loginEmail").getElementsByTagName("Label");
	var loginPwdLbl = document.getElementById("loginPwd").getElementsByTagName("Label");
	var errorMsg = "";
	
	 if ( /^([\w\+_\-']+)(\.[\w\+_\-']+)*@([\w\-]+\.)+[\w]{2,6}$/.test(email)){

        loginEmailLbl[0].className = "labelNoError";
	}
	
	else {
	
	    loginEmailLbl[0].className = "labelError";
	    pwd = "";
	           
	    errorMsg = "* Please enter a valid email address.";
	 }
	 
	if (pwd.length == 0){
	    if (errorMsg != "") {
            errorMsg += "<br>";
        }
        
        loginPwdLbl[0].className = "labelError";
        errorMsg += "* Please enter your password.";
	 }
	 else {
        loginPwdLbl[0].className = "labelNoError";
	 }
	     
	if(errorMsg != "") {
        errorDiv.style.display = "block";
        errorDiv.innerHTML = errorMsg;
        return false;
    }
	
}