Using Javascript to Validate Dynamically created HTML Forms

The code below creates a form based on the users assigned to a course, therefore it is dynamic and to make each name for the Text Box that contains there score I have to append the user's id. How do I maneuver through the text boxes with JS if I don't know the names o fhte elements???

Code:

---

        if isarray(arrStudents) then
                fltScore = ""
               
                for i = 0 to ubound(arrStudents,2)
                        IF Application("RDBMS") = "ORACLE" THEN
                                rs.Open "SELECT student_score/possible_score*100 FROM assessment_report WHERE student_id = " & arrStudents(0,i) & " AND container_id = " & request("session") & " AND testinstance = 1"
                        ELSE
                                rs.Open "SELECT CAST(student_score AS DECIMAL) / CAST(possible_score AS DECIMAL) *100 FROM assessment_report WHERE student_id = " & arrStudents(0,i) & " AND container_id = " & request("session") & " AND testinstance = 1"
                        END IF
                       
                        if rs.EOF then
                                fltScore = 0
                        else
                                fltScore = rs(0)
                        end if
                       
                        rs.close
                       
                        Response.Write "<tr><td>" & arrStudents(1,i) & " " & arrStudents(2,i) & "</td>"
%>
                                <td><input name="txtScore<%=arrStudents(0,i)%>" value="<%=fltScore%>" size="4" onchange="javascript:if (isNaN(parseFloat(this.value))==true){alert('<%=strNOTANUMBER%>');this.value='';this.focus();}"></td><td></td></tr>
<%
                next
        else
                Response.Write "<td colspan=2>" & strNOSTUDENTS & "</td></tr>"
        end if

---

how about that!

Code:

---

<script language="JavaScript">
function cycle() {
    var answer = '';
    for (var i = 0; i<document.formName.elements.length; i++) {
        if ((document.formName.elements[i].name.indexOf('Text') > -1)) {
                  if(document.formName.elements[i].value.length<0){
                        alert('Your missing some info');
                        document.formName.elements[i].select();
                        document.formName.elements[i].focus();
                        break();                 
                  }
        }
    }
}

---

</script>

'Course, you could always do something like... oh... I don't know...

DYNAMICLY CREATE THE JAVASCRIPT, TOO! :)