function detectSize(divSource1, divSource2, divTarget) {
    var divSource1 = '#' + divSource1;
    var soureDiv1Height = $(divSource1).innerHeight();

    var divSource2 = '#' + divSource2;
    var soureDiv2Height = $(divSource2).innerHeight();

    var newHeight;
    if(soureDiv1Height >= soureDiv2Height)
        newHeight = soureDiv1Height;
    else
        newHeight = soureDiv2Height;

    var targetDiv = '#' + divTarget;
    $(targetDiv).css('height', newHeight + 'px');
}