Help needed with my validation

<script type="text/javascript">
function QuoteFields() {
missinginfo = "";
if (document.frmCRMLead.q1.value == null) {
missinginfo += "\n - Question 1 Required";
}
if (document.frmCRMLead.q2.value == null) {
missinginfo += "\n - Question 2 Required";
}
if (document.frmCRMLead.q3.value == null) {
missinginfo += "\n - Question 3 Required";
}
if (document.frmCRMLead.q4.value == null) {
missinginfo += "\n - Question 4 Required";
}
if (document.frmCRMLead.q5.value == null) {
missinginfo += "\n - Question 5 Required";
}
if (document.frmCRMLead.q6.value == null) {
missinginfo += "\n - Question 6 Required";
}
if (document.frmCRMLead.q7.value == null) {
missinginfo += "\n - Question 7 Required";
}
if (missinginfo != "") {
missinginfo ="You need to add the following:\n" +
missinginfo + "\n" +
"\nPlease re-enter and submit again!";
alert(missinginfo);
return false;
}
else return true;
}
</script>

if (missinginfo != "") {
missinginfo ="You need to add the following:\n" +
missinginfo + "\n" +
"\nPlease re-enter and submit again!";
alert(missinginfo);
return false;
}
else return true;
}

if (missinginfo != "") {
missinginfo ="You need to add the following:\n" +
missinginfo + "\n" +
"\nPlease re-enter and submit again!";
alert(missinginfo);
return false;
}
else {
return true;
}
}