div#container{ width: 900px; margin: 0px auto }
div#header {}
div#wrapper{ float:left; width:100%; }
div#content{ margin: 0px 150px }
div#sidebarOne{ float:left; width:150px; margin-left:-900px }
div#sidebarTwo{ float:left; width:150px; margin-left:-150px }
div#footer{ clear:left; width:100% }