if (document.images) {


	bb_on = new Image();

	bb_on.src = "images/menu/back2.gif";

	bb_off = new Image();

	bb_off.src = "images/menu/back1.gif";
	
		hm_on = new Image();

	hm_on.src = "images/menu/home2.gif";

	hm_off = new Image();

	hm_off.src = "images/menu/home1.gif";
	
b1_on = new Image();

	b1_on.src = "images/menu/tips2.gif";

	b1_off = new Image();

	b1_off.src = "images/menu/tips1.gif";
	
	b2_on = new Image();

	b2_on.src = "images/menu/settlement2.gif";

	b2_off = new Image();

	b2_off.src = "images/menu/settlement1.gif";
	
	b3_on = new Image();

	b3_on.src = "images/menu/coast2.gif";

	b3_off = new Image();

	b3_off.src = "images/menu/coast1.gif";
	
	b4_on = new Image();

	b4_on.src = "images/menu/icebergs2.gif";

	b4_off = new Image();

	b4_off.src = "images/menu/icebergs1.gif";
	
	b5_on = new Image();

	b5_on.src = "images/menu/marine2.gif";

	b5_off = new Image();

	b5_off.src = "images/menu/marine1.gif";
	
	b6_on = new Image();

	b6_on.src = "images/menu/medicinal2.gif";

	b6_off = new Image();

	b6_off.src = "images/menu/medicinal1.gif";
	
	b7_on = new Image();

	b7_on.src = "images/menu/bare2.gif";

	b7_off = new Image();

	b7_off.src = "images/menu/bare1.gif";
	
	b8_on = new Image();

	b8_on.src = "images/menu/rotary2.gif";

	b8_off = new Image();

	b8_off.src = "images/menu/rotary1.gif";
	
	b9_on = new Image();

	b9_on.src = "images/menu/british2.gif";

	b9_off = new Image();

	b9_off.src = "images/menu/british1.gif";
	
	b10_on = new Image();

	b10_on.src = "images/menu/sker2.gif";

	b10_off = new Image();

	b10_off.src = "images/menu/sker1.gif";
	
	b11_on = new Image();

	b11_on.src = "images/menu/fox2.gif";

	b11_off = new Image();

	b11_off.src = "images/menu/fox1.gif";
	
	b12_on = new Image();

	b12_on.src = "images/menu/murphy2.gif";

	b12_off = new Image();

	b12_off.src = "images/menu/murphy1.gif";
	
		b13_on = new Image();

	b13_on.src = "images/menu/maberly2.gif";

	b13_off = new Image();

	b13_off.src = "images/menu/maberly1.gif";	
	
	b14_on = new Image();

	b14_on.src = "images/menu/klondike2.gif";

	b14_off = new Image();

	b14_off.src = "images/menu/klondike1.gif";	
	
	b15_on = new Image();

	b15_on.src = "images/menu/center2.gif";

	b15_off = new Image();

	b15_off.src = "images/menu/center1.gif";		
	
	b16_on = new Image();

	b16_on.src = "images/menu/contact2.gif";

	b16_off = new Image();

	b16_off.src = "images/menu/contact1.gif";
		
	b17_on = new Image();

	b17_on.src = "images/menu/guestbook2.gif";

	b17_off = new Image();

	b17_off.src = "images/menu/guestbook1.gif";
	
b18_on = new Image();

	b18_on.src = "images/menu/thedtta2.gif";

	b18_off = new Image();

	b18_off.src = "images/menu/thedtta1.gif";
	b19_on = new Image();

	b19_on.src = "images/menu/survey2.gif";

	b19_off = new Image();

	b19_off.src = "images/menu/survey1.gif";
		b20_on = new Image();

	b20_on.src = "images/menu/ecology2.gif";

	b20_off = new Image();

	b20_off.src = "images/menu/ecology1.gif";
	
	b21_on = new Image();

	b21_on.src = "images/menu/ourlocal2.gif";

	b21_off = new Image();

	b21_off.src = "images/menu/ourlocal1.gif";
	
	b22_on = new Image();

	b22_on.src = "images/menu/kings2.gif";

	b22_off = new Image();

	b22_off.src = "images/menu/kings1.gif";
			} 

// function to change images to rollover state 

function dsgo(imgName) { 

        if (document.images) { 

            document[imgName].src = eval(imgName + "_on.src"); 

        } 

} 

// function to change images to non-rollover state 

function dsleave(imgName) { 

        if (document.images) { 

            document[imgName].src = eval(imgName + "_off.src"); 

        } 

}