function ValidateSignIn(frmObj){
// Validate Shopper_Name and Shopper_Password
	var txtEmail = frmObj.shopper_name.value;
	var txtPass = frmObj.shopper_password.value;
	var errMsg = 'Please check the following ';
	if(ValidateEmail(txtEmail)) errMsg += '\r -- A valid email address.';
	if(ValidatePass(txtPass)) errMsg += '\r -- A valid password.';
	if(errMsg=='Please check the following '){
		return true;
	}else{
		alert(errMsg);
		return false;
	}
}
function ValidateEmail(txtEmail){
// Validates email address
	var intPos = txtEmail.indexOf('@', 1)
	if(intPos== -1) return true;
	return false;
	
}
function ValidatePass(txtPass){
// Validates Password
	var intLen = txtPass.length
	if(intLen<6) return true;
	return false;
}