<style>
    .even{
        background-color:#E6E6FA;
    }
    .uneven{
        background-color:#F0F8FF;
    }
</style>
<div id="gridbox" width="100%" height="250px" style="background-color:white;overflow:hidden"></div>
<script>
 
    mygrid = new dhtmlXGridObject('gridbox');
    mygrid.init();
        mygrid.enableAlterCss("even","uneven");
    mygrid.loadXML("grid.xml");</script>