function isEmail(elm) 
{
if (elm.value.indexOf("@") + "" != "-1" &&
        elm.value.indexOf(".") + "" != "-1" &&
        elm.value != "") 
    return true;
    else return false;
}


function isFilled(elm) {
    if (elm.value == "" ||
        elm.value == null) 
    return false;
    else return true;
}

function isReady(form) {

 // is fullname element filled?

    if (isFilled(form.name) == false) {
    alert("Please enter your name.");
    form.name.focus();
    return false;
    }



    // is address element a real email address?

    if (isEmail(form.fromemail) == false) { 
    alert("Please enter your email address.");
    form.fromemail.focus();
    return false;
    }

   // is recipient's name element filled?

    if (isFilled(form.to_name) == false) {
    alert("Please enter your recipient's name.");
    form.to_name.focus();
    return false;
    }



    // is recipient's element  email address?

    if (isEmail(form.toemail) == false) { 
    alert("Please enter your recipient's email address.");
    form.toemail.focus();
    return false;
    }
	

    
return true;
}