function checkFields() {
missinginfo = "";
if (document.form.name.value == "") {
missinginfo += "\n     *  Your Name";
}
if ((document.form.email.value == "") || 
(document.form.email.value.indexOf('@') == -1) || 
(document.form.email.value.indexOf('.') == -1)) {
missinginfo += "\n     *  Your Email";
}
if(document.form.msg.value == "") {
missinginfo += "\n     *  Message";
}

if (missinginfo != "") {
missinginfo ="_____________________________\n" +
"          Pls. fill up all information!\n" +
missinginfo + "\n_____________________________" +
"\n                  and try again!";
alert(missinginfo);
return false;
}
else return true;
}