<!--

var	arrOff, arrOn, arrNames;		//arrays for images and image names
var bOkay;

bOkay= document.images;				//images OK?
arrOff = new Array();
arrOn = new Array();
arrNames = new Array();

//Called in the Onload event of the body tag
function preload()
{					
	var iSlashIndex, iLastIndex;		//integers and indices
	var strName, strImagePath;			//image name and path
	var iCount, i, j;					
	
	if (bOkay)
	{
		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;			
				arrOff[j].src = strImagePath;					//the off image is the image itself
				strImagePath = strImagePath.substring(0, strImagePath.length-4);
				if (strImagePath.search("nav") > 0)     {
	                arrOn[j].src = strImagePath + "_on.gif";	//the on image
	                }
				j++;
			}
		}	
	}
}


function on(strName) 
{
	var i;
	if (bOkay)
	{
		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)
	{
		for (i=0; i<arrNames.length; i++)
		{
			if (strName == arrNames[i])
			{
				document.images[strName].src = arrOff[i].src;
			}
		}
	}
}

//-->