Wrong text height if an image in ?

Hi,
An issue with a text containing a img tag in the htmlText
property
<mx:GridRow width="100%">
<mx:GridItem id="bottomText" colSpan="2" width="100%">
<mx:Text id="contentText" selectable="true"
width="100%">
html conetnt here...
</mx:GridItem>
</mx:GridRow>
The text is not completly rendered.. Because the grid size
was calculated as the image wasn't still download...
How can I avoid that?

I am not quite sure how to do this in java, my attempts so far have stalled my current javascript.
I have a hidden input
<input type="hidden" name="Choice" value = " "/>
heres a piece of my javascript for the image change:
var newsrc4 = "24hrpushed.jpg";
function changeImage24hr() {
if ( newsrc4 == "24hrpushed.jpg" ) {
document.images["pic4"].src = "images/24hrpushed.jpg";
document.images["pic4"].alt = "24hrpushed";
newsrc4 = "24hr.jpg";
else {
document.images["pic4"].src = "images/24hr.jpg";
document.images["pic4"].alt = "24hr";
newsrc4 = "24hrpushed.jpg";
I am not quite sure how to link to my hidden input in the script to set the value. the document.mainform. is not finding my hidden input, i am not quite sure how to code this.

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