if (document.images) {            // Active Images
        img1on = new Image();      
        img1on.src = "images/proven_on.jpg"; 
        img2on = new Image();      
        img2on.src = "images/reliable_on.jpg"; 
        img3on = new Image();      
        img3on.src = "images/connected_on.jpg"; 
        img4on = new Image();      
        img4on.src = "images/committed_on.jpg"; 

        img1off = new Image();      
        img1off.src = "images/proven.jpg"; 
        img2off = new Image();      
        img2off.src = "images/reliable.jpg"; 
        img3off = new Image();      
        img3off.src = "images/connected.jpg"; 
        img4off = new Image();      
        img4off.src = "images/committed.jpg"; 
}


// Function to 'switch' images.
function changeImages() {
        if (document.images) {
                for (var i=0; i<changeImages.arguments.length; i+=2) {
                        document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
                        }
                }
        }

function rollover(n) {
        // Hide thiings
        if (document.getElementById) { // DOM3 = IE5, NS6
                document.getElementById('home_reliable').style.visibility = 'hidden';
                document.getElementById('home_reliable').style.display = 'none';
                document.getElementById('home_committed').style.visibility = 'hidden';
                document.getElementById('home_committed').style.display = 'none';
                document.getElementById('home_connected').style.visibility = 'hidden';
                document.getElementById('home_connected').style.display = 'none';
                document.getElementById('home_proven').style.visibility = 'hidden';
                document.getElementById('home_proven').style.display = 'none';
                document.getElementById('home_none').style.visibility = 'visible';
                document.getElementById('home_none').style.display = 'block';

                if (n == 'proven') {
                        document.getElementById('home_proven').style.visibility = 'visible';
                        document.getElementById('home_proven').style.display = 'block';
                        document.getElementById('home_none').style.visibility = 'hidden';
                        document.getElementById('home_none').style.display = 'none';
                }
                if (n == 'connected') {
                        document.getElementById('home_connected').style.visibility = 'visible';
                        document.getElementById('home_connected').style.display = 'block';
                        document.getElementById('home_none').style.visibility = 'hidden';
                        document.getElementById('home_none').style.display = 'none';
                }
                if (n == 'committed') {
                        document.getElementById('home_committed').style.visibility = 'visible';
                        document.getElementById('home_committed').style.display = 'block';
                        document.getElementById('home_none').style.visibility = 'hidden';
                        document.getElementById('home_none').style.display = 'none';
                }
                if (n == 'reliable') {
                        document.getElementById('home_reliable').style.visibility = 'visible';
                        document.getElementById('home_reliable').style.display = 'block';
                        document.getElementById('home_none').style.visibility = 'hidden';
                        document.getElementById('home_none').style.display = 'none';
                }
        }
}