/** Changes the source of an image element
    @param string id The id of the image element
    @param string imageName The name of the image file without the path or extension
    @param bool isOver Whether or not the mouse is over the image element
    @param string root The path to the root of the website
*/
function swapNavImage (id,imageName, isOver, root)
{
    img = getObject (id);
    if (img) {
        imagePath = root + "/images/" + imageName

        if (isOver) {
            imagePath = imagePath + "_on";
        }
        else {
            imagePath = imagePath + "_off";
        }


        imagePath = imagePath + ".gif";
        img.src = imagePath;
    }
}

/** Retrieve the object with the given ID
 *	@param string objectID The ID of the object.
 *	@return [object] The object or null if not found
 */
function getObject(objectId) {
    // cross-browser function to get an object's style object given its id
    if(document.getElementById && document.getElementById(objectId)) {
        // W3C DOM
        return document.getElementById(objectId);
    } 
    else if (document.all && document.all(objectId)) 
    {
        // MSIE 4 DOM
        return document.all(objectId);
    } 
    else if (document.layers && document.layers[objectId]) 
    {
        // NN 4 DOM.. note: this won't find nested layers
        return document.layers[objectId];
    } else 
    {
        return false;
    }
}

// Open a new window to navigate the main divisionONE site
function openImageGallery (root, projectID, imageIndex) {
    
    window.open (root + "/gallery/index.php?proj="+projectID.toString()+"&img="+imageIndex.toString(), "division1Gallery", "status=no,menubar=no, height=325, width=520, scrollbars=no, toolbar=no,copyhistory=no,resizable=no");
    
}

// Macromedia Dreamweaver function for handling roll overs
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
    var i,j=0,x,a=MM_swapImage.arguments; 
    
    document.MM_sr=new Array; 
    for (i=0;i<(a.length-2);i+=3) {
        
        x=MM_findObj(a[i])		
        if (x != null) {
            document.MM_sr[j++]=x; 
            if (!x.oSrc) 
                x.oSrc=x.src; 
            x.src=a[i+2];
        }
    }
}