function validate() {

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

if (document.forms[0].your_email.value.indexOf('@')==-1  || document.forms[0].your_email.value.indexOf('.')==-1  || document.forms[0].your_email.value.length <= 7 )
    {
    alert("Please provide your email");
    return false;
    }


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



function validate_newsletter() {

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

if (document.forms[0].your_email.value.indexOf('@')==-1  || document.forms[0].your_email.value.indexOf('.')==-1  || document.forms[0].your_email.value.length <= 7 )
    {
    alert("Please provide your email");
    return false;
    }

}

function validate_download() {

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

if (document.getElementById("your_address_download").value.length < 2 )	{
    alert("Please provide your email ");
    return false;
    }

}