I'm flummoxed. In IE10, although these functions are defined immediately above the call to them, they are seen as not defined

I'm flummoxed. In IE10, although these functions are defined immediately
above the call to them, they are seen as not defined

The following function definition is immediately followed by an input
field with a call to it, yet the function is not seen as defined?!
<script>
<![CDATA[
function SubmitCross()
{
var axis1 = "select_flavor" +
document.all.item('axisflavor1').selectedIndex + "_axis1";
var axis2 = "select_flavor" +
document.all.item('axisflavor2').selectedIndex + "_axis2";
var variable1 = document.all.item(axis1).value.split(".");
if (variable1[0].indexOf("error") == -1)
{
var questionY = variable1[0].split("-");
var implicitTypeY = variable1[1].split("-");
var flavorY = variable1[2].split("-");
document.all.item('question_y').value = questionY[1];
document.all.item('implicit_type_y').value =
implicitTypeY[1];
document.all.item('flavor_y').value = flavorY[1];
document.all.item('choice_y').value = -1;
}
else
{
alert ("Please select a valid x-axis variable");
return;
}
var variable2 = document.all.item(axis2).value.split(".");
if (variable2[0].indexOf("error") == -1)
{
var questionX = variable2[0].split("-");
var implicitTypeX = variable2[1].split("-");
var flavorX = variable2[2].split("-");
document.all.item('question_x').value = questionX[1];
document.all.item('implicit_type_x').value =
implicitTypeX[1];
document.all.item('flavor_x').value = flavorX[1];
document.all.item('choice_x').value = -1;
}
else
{
alert ("Please select a valid y-axis variable");
return;
}
]]> This following input element contains a call to the above function,
literally right below it. IE 10 does not want to recognize that it's a
function?!?!
<input class="popuButton" type="button" value="Go!"
onclick="SubmitCross();"/>&#160;&#160;&#160;&#160;