function checkForm(objForm)
{

	emailRegEx = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;

	if(objForm.txtEmail.value == '')
	{
		alert('Please enter your email address');
		objForm.txtEmail.focus();
		return false;
	}
	else if(!emailRegEx.test(objForm.txtEmail.value))
	{
		alert("Please enter a valid email address.");
		objForm.txtEmail.focus();
		return false;
	}
	else
	{
		return true;
	}
}