jQuery Full height columns

fullHeight.js

//CALL THIS IN THE FOOTER, AFTER THE DOM HAS BEEN LOADED AND ANY OTHER DOM MANIPULATING JS HAS BEEN EXECUTED
function updateSidebar() {
    var $width = document.documentElement.clientWidth,
        $height = document.documentElement.clientHeight,
        $main = jQuery('#main').height();
        $sidebar = jQuery('#sidebar').height();

    if($width > 755) {
        if($main > $sidebar) {
            jQuery('#sidebar').css({'min-height': $main});
        } else {
            jQuery('#main').css({'min-height': $sidebar});
        }
    } else {
        jQuery('#sidebar').removeAttr('style');
    }
}

// then call it on load AND browser resize
    $(window)
        .load(function() {
            updateSidebar();
        })
        .resize(function(){
            updateSidebar();
        });