function setBoxes() {

    var tallest;

    var box1Height;
    var box2Height;

    var i = 1;
    for(i = 1; i <= 5; i++)
    {
        if (document.getElementById("contentBoxContentLeft_" + i) && document.getElementById("contentBoxContentRight_" + i)) {

            tallest = 0;

            box1Height = 0;
            box2Height = 0;

            if (document.getElementById("contentBoxContentLeft_" + i).offsetHeight != document.getElementById("contentBoxContentRight_" + i).offsetHeight) {

                box1Height = document.getElementById("contentBoxContentLeft_" + i).offsetHeight;
                box2Height = document.getElementById("contentBoxContentRight_" + i).offsetHeight;

                tallest = box1Height;

                if (box2Height > tallest) {
                    tallest = box2Height;
                }

                document.getElementById("contentBoxContentLeft_" + i).style.height = tallest + "px";
                document.getElementById("contentBoxContentRight_" + i).style.height = tallest + "px";

            }

        }
    }

}