function getDirections() {
        var startStreet = document.getElementById('start-street').value;
        if( startStreet == "Starting Address" )
            startStreet = "";
        var startTown = document.getElementById('start-town').value;
        if( startTown == "City or Town" )
            startTown = "";
        var startState = document.getElementById('start-state').value;
        if( startState == "State" )
            startState = "";
        var startZip = document.getElementById('start-zip').value;
        if( startZip == "Zip Code" )
            startZip = "";

        var endStreet = document.getElementById('end-street').value;
        if( endStreet == "Destination Address" )
            endStreet = "";
        var endTown = document.getElementById('end-town').value;
        if( endTown == "City or Town" )
            endTown = "";
        var endState = document.getElementById('end-state').value;
        if( endState == "State" )
            endState = "";
        var endZip = document.getElementById('end-zip').value;
        if( endZip == "Zip Code" )
            endZip = "";

        var startAddress = startStreet + " " + startTown + " " + startState + " " + startZip;
        var endAddress = endStreet + " " + endTown + " " + endState + " " + endZip;
        
        var googleURL = "http://maps.google.com/maps?saddr=" + encodeURIComponent( startAddress ) + "&daddr=" + encodeURIComponent( endAddress );
        
        window.open( googleURL, '_blank' );
    }