var remail=/^([_&a-zA-Z0-9-]+(\.[_&a-zA-Z0-9-]+)*@[&a-zA-Z0-9-]+\.+[&a-zA-Z0-9-]+)/;

function checkEmail(fieldvalue) {
    if(remail.test(fieldvalue))
        return false;
    else
        return true;
}


function checkBlank(fieldvalue) {

    for(counter=0;counter < fieldvalue.length;counter++) {

        if (fieldvalue.charAt(counter) == ' ') {
            continue;
        } else {
            break;
            return false;
        }
    }

    if (fieldvalue.length == counter)
        return true;

}

function submitfrmSaNSignup(formNm) {
     var error =0;
    if (checkBlank(formNm.name.value)) {
        alert ('Please enter name');
        formNm.name.value='';
        formNm.name.focus();
        error=1;
        return false;
    } else if (checkBlank(formNm.txt_email.value)) {
        alert ('Please enter email');
        formNm.txt_email.value='';
        formNm.txt_email.focus();
        error= 1;
        return false;

    } else if (checkEmail(formNm.txt_email.value)) {
        alert ('Please enter valid email');
        //formNm.txt_email.value='';
        formNm.txt_email.focus();
        error=1;
        return false;
    }
    if (error ==0 ) {
        var san_email = formNm.txt_email.value;
        var san_name = formNm.name.value;
        var pars = 'san_email=' + san_email + '&san_name=' + san_name;
        window.open('san_popup.php?'+pars, '', 'width=500, height=500');
    }
    return false;
}