JAVA & XML & JAVASCRIPT & AJAX & CSS

?1 <? xml?version = " 1.0 " ?encoding = " UTF-8 " ?>
?2 <! DOCTYPE?html?PUBLIC? " -//W3C//DTD?XHTML?1.0?Strict//EN " ? " http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd " >
?3 < html?xmlns = " http://www.w3.org/1999/xhtml " >
?4 ???? < head >
?5 ???????? < title ></ title >
?6 ???????? < style >
?7 ???????? </ style >
?8 ???? </ head >
?9 ???? < body >
10 ???????? < div?id = " main " ?style = " width:500px;?height:400px;?border:1px?solid?#0000ff " >
11 ???????????? < div?style = " width:100px;?height:100px;?border:1px?solid?#ff0000;?position:absolute " >
12 ????????????dasdsadas
13 ???????????? </ div >
14 ???????? </ div >
15 ???????? < script?language = " JScript " >
16 ????????document.getElementById( " main " ).unselectable? = ? " on " ;
17 ????????document.getElementById( " main " ).contentEditable? = ? true ;
18 ????????document.execCommand('2D - Position',? true ,? true );
19 ???????? </ script >
20 ???? </ body >
21 </ html >