Check max-min positions

gistfile1.js

function checkMaxMinPos(a, b, aW, aH, bW, bH, maxX, minX, maxY, minY) {
    'use strict';

    if (a.left < b.left) {
        if (a.left < minX) {
            minX = a.left;
        }
    } else {
        if (b.left < minX) {
            minX = b.left;
        }
    }

    if (a.left + aW > b.left + bW) {
        if (a.left > maxX) {
            maxX = a.left + aW;
        }
    } else {
        if (b.left + bW > maxX) {
            maxX = b.left + bW;
        }
    }
    ////////////////////////////////
    if (a.top < b.top) {
        if (a.top < minY) {
            minY = a.top;
        }
    } else {
        if (b.top < minY) {
            minY = b.top;
        }
    }

    if (a.top + aH > b.top + bH) {
        if (a.top > maxY) {
            maxY = a.top + aH;
        }
    } else {
        if (b.top + bH > maxY) {
            maxY = b.top + bH;
        }
    }

    return {
        'maxX': maxX,
        'minX': minX,
        'maxY': maxY,
        'minY': minY
    };
}