function contactUs(){
        var temp = false;
        var cu = document.cu;
        if(cu.nm.value == ''){
                alert('Name cannot be blank.');
                cu.nm.focus();
        }else if(cu.email.value == ''){
                alert('E-Mail cannot be blank.');
                cu.email.focus();
        }else if(!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(cu.email.value))){
                alert("Invalid E-mail Address! Please re-enter.")
                cu.email.focus();
        }else if(cu.message.value == ''){
                alert('Message cannot be blank.');
                cu.message.focus();
        }else
                temp = true;

        return temp;
}