<div id="maincontainer">
    <div id="framecontentLeft">
         <div class="innertube">
             <p>LEFT  COL - FIXED 230px<br /><br />SOME TEXT....<script type="text/javascript">filltext(2)</script>END</p>   
             <div class="leftContainer">
               some content ...         
        </div>        
    </div>

    <div id="framecontentRight">
        <div class="innertube">
            <p>some LONG LONG content ...(more than 100% page height)     </p>
        </div>
    </div>

    <div id="maincontent">
        <div class="innertube">
            <p> some content ...         </p>
        </div>
    </div>
</div>