Code:
<script type="text/javascript">
var pageHeightFn = function(){
var left_height = jQuery("#content_main").innerHeight();
jQuery("#column_left").css({height: left_height});
};
if (window.addEventListener)
{
window.addEventListener('load', pageHeightFn, false);
}
else if (window.attachEvent) // Microsoft
{
window.attachEvent('onload', pageHeightFn);
}
</script>