jQuery: Equal Height Divs

equalheight.js

var equalheight = function (container) {

    var currentTallest = 0,
            currentRowStart = 0,
            rowDivs = [],
            $el,
            topPosition = 0;
    $(container).each(function () {
        $el = $(this);
        $($el).height('auto');
        var topPostion = $el.position().top;

        if (currentRowStart != topPostion) {
            for (currentDiv = 0; currentDiv < rowDivs.length; currentDiv++) {
                rowDivs[currentDiv].height(currentTallest);
            }
            rowDivs.length = 0; // empty the array
            currentRowStart = topPostion;
            currentTallest = $el.height();
            rowDivs.push($el);
        } else {
            rowDivs.push($el);
            currentTallest = (currentTallest < $el.height()) ? ($el.height()) : (currentTallest);
        }
        for (var currentDiv = 0; currentDiv < rowDivs.length; currentDiv++) {
            rowDivs[currentDiv].height(currentTallest);
        }
    });
};

$(window).load(function () {
    equalheight('.course');
});

$(window).resize(function () {
    equalheight('.course');
});