function validate_contact() {

if ( document.getElementById('your_name').value.length < 2 ) {
    alert("Please provide a real name");
    return false;
    }

if (document.getElementById("your_address").value.indexOf('@')==-1  || document.getElementById("your_address").value.indexOf('.')==-1  || document.getElementById("your_address").value.length <= 7 )
    {
    alert("Please provide your email");
    return false;
    }


if (document.getElementById("your_message").value.length < 5 )	{
    alert("Please write a message ");
    return false;
    }
}

function validate_voucher() {

if ( document.getElementById('voucher_name').value.length < 2 ) {
    alert("Please provide a real name");
    return false;
    }

if (document.getElementById("voucher_email").value.indexOf('@')==-1  || document.getElementById("voucher_email").value.indexOf('.')==-1  || document.getElementById("voucher_email").value.length <= 7 )
    {
    alert("Please provide your email");
    return false;
    }


if (document.getElementById("voucher_message").value.length < 5 )	{
    alert("Please write a message ");
    return false;
    }

if (!document.getElementById("voucher_1").checked && !document.getElementById("voucher_2").checked && !document.getElementById("voucher_3").checked && !document.getElementById("voucher_4").checked && !document.getElementById("voucher_5").checked && !document.getElementById("voucher_6").checked && !document.getElementById("voucher_7").checked )	{
    alert("Please choose one option ");
    return false;
    }
}