var offImgArray = new Array();
var onImgArray = new Array();
var indexArray = new Array(12);


	indexArray[0] = "adelaide"; 
	indexArray[1] = "eping"; 
	indexArray[2] = "esion"; 		
	indexArray[3] = "frontline"; 		
	indexArray[4] = "improview";
	indexArray[5] = "instantel";
	indexArray[6] = "researchinc";
	indexArray[7] = "sigmen";
	indexArray[8] = "thompson";
	indexArray[9] = "videosphere";
	indexArray[10] = "workwise";
	indexArray[11] = "zavor";

	offImgArray[0] = new Image( 80, 50);
	offImgArray[1] = new Image( 80, 50);
	offImgArray[2] = new Image( 80, 50);
	offImgArray[3] = new Image( 80, 50);
	offImgArray[4] = new Image( 80, 50);
	offImgArray[5] = new Image( 80, 50);
	offImgArray[6] = new Image( 80, 54);
	offImgArray[7] = new Image( 80, 50);
	offImgArray[8] = new Image( 80, 50);
	offImgArray[9] = new Image( 80, 50);
	offImgArray[10] = new Image( 80, 50);
	offImgArray[11] = new Image( 80, 50);

	offImgArray[0].src = "images/samples/menu/adelaide_off.gif";
	offImgArray[1].src = "images/samples/menu/eping_off.gif";
	offImgArray[2].src = "images/samples/menu/esion_off.gif";
	offImgArray[3].src = "images/samples/menu/frontline_off.gif";
	offImgArray[4].src = "images/samples/menu/improview_off.gif";
	offImgArray[5].src = "images/samples/menu/instantel_off.gif";
	offImgArray[6].src = "images/samples/menu/researchinc_off.gif";
	offImgArray[7].src = "images/samples/menu/sigmen_off.gif";
	offImgArray[8].src = "images/samples/menu/thompson_off.gif";
	offImgArray[9].src = "images/samples/menu/videosphere_off.gif";
	offImgArray[10].src = "images/samples/menu/workwise_off.gif";
	offImgArray[11].src = "images/samples/menu/zavor_off.gif";
	
	onImgArray[0] = new Image( 80, 50);
	onImgArray[1] = new Image( 80, 50);
	onImgArray[2] = new Image( 80, 50);
	onImgArray[3] = new Image( 80, 50);
	onImgArray[4] = new Image( 80, 50);
	onImgArray[5] = new Image( 80, 50);
	onImgArray[6] = new Image( 80, 54);
	onImgArray[7] = new Image( 80, 50);
	onImgArray[8] = new Image( 80, 50);
	onImgArray[9] = new Image( 80, 50);
	onImgArray[10] = new Image( 80, 50);
	onImgArray[11] = new Image( 80, 50);

	onImgArray[0].src = "images/samples/menu/adelaide_on.gif";
	onImgArray[1].src = "images/samples/menu/eping_on.gif";
	onImgArray[2].src = "images/samples/menu/esion_on.gif";
	onImgArray[3].src = "images/samples/menu/frontline_on.gif";
	onImgArray[4].src = "images/samples/menu/improview_on.gif";
	onImgArray[5].src = "images/samples/menu/instantel_on.gif";
	onImgArray[6].src = "images/samples/menu/researchinc_on.gif";
	onImgArray[7].src = "images/samples/menu/sigmen_on.gif";
	onImgArray[8].src = "images/samples/menu/thompson_on.gif";
	onImgArray[9].src = "images/samples/menu/videosphere_on.gif";
	onImgArray[10].src = "images/samples/menu/workwise_on.gif";
	onImgArray[11].src = "images/samples/menu/zavor_on.gif";

function index( str )
	{
	for( var i = 0; i < indexArray.length; i++ )
		{
		if( indexArray[i] == str  )
			return i;
		}
	return 0;
	}

function imageOn( iName )
	{
	document[ iName ].src = onImgArray[ index(iName) ].src; 
	}

function imageOff( iName )
	{
	document.images[ iName ].src = offImgArray[ index(iName) ].src; 
	}