if (document.images) {
	homeON = new Image();
	homeON.src = "images/homeON.gif";

	homeOFF = new Image();
   	homeOFF.src = "images/homeOFF.gif";

	newsON = new Image();
   	newsON.src = "images/newsON.gif";

	newsOFF = new Image();
	newsOFF.src = "images/newsOFF.gif";

	officersON = new Image();
	officersON.src = "images/officeON.gif";

	officersOFF = new Image();
	officersOFF.src = "images/officeOFF.gif";

	modulesON = new Image();
	modulesON.src = "images/modulesON.gif";

	modulesOFF = new Image();
	modulesOFF.src = "images/modulesOFF.gif";

	historyON = new Image();
	historyON.src = "images/historyON.gif";

	historyOFF = new Image();
	historyOFF.src = "images/historyOFF.gif";

	interchangeON = new Image();
	interchangeON.src = "images/interchangeON.gif";

	interchangeOFF = new Image();
	interchangeOFF.src = "images/interchangeOFF.gif";


}

function imgOn(imgName){
		if (document.images){
			document.images[imgName].src=eval(imgName + "ON").src;
			}
			
}

function imgOff(imgName){
		if (document.images){
			document.images[imgName].src=eval(imgName + "OFF").src;
			}
			
}