Parent and Iframe Issue! both R on the same domain?

1

From what I Know Both files must reside on the same domain "DONE!’.
Parent — textbox1.value= “”
Iframe — textbox1.value= “”
When IFrame loads a my button "called Contents " appears … I click it calls calls Function thecontents() <!–
this is the iframe function–>
<button… Contents </button> //calls Function thecontents()//


headerList =document.body.innerHTML
textbox1.value = "<pre>" + headerList + "</pre>";

Now Iframe textbox1.value= ‘NEW DATA in here from contents Iframes innerhtml’
is filled with the data I need… //I have the data I need//
// now lets send the data from the Iframe’s text1.value to the parent textbox1//

//“Error at this point”//


X =document.getElementById('textbox1').value ['myIframe'].document.getElementById('textbox1').value
 
alert(x)  //"Error at this point"//
x= Iframes Textbox1.value
 
 
parents textbox1.value  x ; // should show X but it does'nt//

My Files test1.htm and test2.htm are on my local computer for testing
I did test in my local webserver worked ok until I try to send the data to
the parent…
test1.htm the parent
test2.htm the Iframe inside parent