// functions for highlighting the buttons for zooming in and out
function plushighlight(img)
{
	img.src = "images/plusmouse.jpg"
}
function minushighlight(img)
{
	img.src = "images/minusmouse.jpg"
}
function Reset()
{
	document.getElementById('Plus').src = "images/plus.jpg";
	document.getElementById('Minus').src = "images/minus.jpg";
}
// End of highlight functions



function Zoom()
{
    var sSrc;
    sSrc = document.getElementById('Map').value;
    switch (sSrc) 
    {
        case "Map1": document.getElementById('Map').src = "images/Map2.jpg"; document.getElementById('Scroll').src = "images/ScrollMaxPlus.jpg"; document.getElementById('Map').value="Map2";break;
        case "Map2": document.getElementById('Map').src = "images/Map3.jpg"; document.getElementById('Scroll').src = "images/ScrollMax.jpg"; document.getElementById('Map').value="Map3";break;
    }
}

function ZoomIn()
{
    var sSrc;
    sSrc = document.getElementById('Map').value;
    switch (sSrc) 
    {
        case "Map1": document.getElementById('Map').src = "images/Map2.jpg"; document.getElementById('Scroll').src = "images/ScrollMaxPlus.jpg";document.getElementById('Map').value="Map2";break;
        case "Map2": document.getElementById('Map').src = "images/Map3.jpg"; document.getElementById('Scroll').src = "images/ScrollMax.jpg";document.getElementById('Map').value="Map3";break;
    }
}

function ZoomOut()
{
    var sSrc;
    sSrc = document.getElementById('Map').value;
    switch (sSrc) 
    {
        case "Map2": document.getElementById('Map').src = "images/Map1.jpg"; document.getElementById('Scroll').src = "images/scrollmin.jpg";document.getElementById('Map').value="Map1";break;
        case "Map3": document.getElementById('Map').src = "images/Map2.jpg"; document.getElementById('Scroll').src = "images/ScrollMaxPlus.jpg";document.getElementById('Map').value="Map2";break;
    }
}