if (document.images) {

                img1 = new Image

                img2 = new Image

                img3 = new Image

                img4 = new Image

                imgRed = new Image



                img1.src = "images/mwmap1.gif"

                img2.src = "images/nwmap1.gif"

                img3.src = "images/nemap1.gif"

                img4.src = "images/swmap1.gif"

                imgRed.src = "images/locationsmap1.gif"

        }

        else {

                img1 = ""

                img2 = ""

                img3 = ""

                img4 = ""

                imgRed = ""



                document.roll = ""

        }