<!--

var arrOff, arrOn, arrNames;		//arrays for images and image names
var bOkay;

arrOff = new Array();
arrOn = new Array();
arrNames = new Array();

function preload(){			//Called in the Onload event of the body tag

var iSlashIndex, iLastIndex;		//integers and indices
var strName, strImagePath;		//image name and path
var iCount, i, j;					
// alert("PreLoad");
bOkay= document.images;		//images OK?
if (bOkay)
{
// alert("PreLoad");
	iCount = document.images.length;
	j = 0;	

	for (i=0; i<iCount; i++)
	{
		strName = document.images[i].id;
 
		if (strName != "")			//Add any exceptions here. NB need names of multiple rollovers (cannot handle these)
		{							// eg (strName != "" && strName != image1 && ...)
									//Also - .gif rollovers only! (could easily be altered)
			arrOff[j] = new Image();
			arrOn[j] = new Image();
			arrNames[j] = new String();

			arrNames[j] = strName;	//the image name is stored (name=filename)
			
			strImagePath = document.images[i].src;	
//			alert("Load "+strName+" path="+strImagePath);		
			arrOff[j].src = strImagePath;	//the off image is the image itself
			strImagePath = strImagePath.substring(0, strImagePath.length-4);
          arrOn[j].src = strImagePath + "_on.gif";			//the on image
			j++;
		}
	}
		
}
}

function on(strName) 
{
var i;
if (bOkay)
{
// alert("ON "+strName);
	for (i=0; i<arrNames.length; i++)
	{
		if (strName == arrNames[i])
		{
			document.images[strName].src = arrOn[i].src;		
		}
	}
}
}

function off(strName)
{
var i;

if (bOkay)
{
// alert("OFF "+strName);
	for (i=0; i<arrNames.length; i++)
	{
		if (strName == arrNames[i])
		{
			document.images[strName].src = arrOff[i].src;
		}
	}
}
}
//-->