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if(document.images){
b1off=new Image(); b1off.src="images/lftnav_bhealth_01.gif";
b1on=new Image(); b1on.src="images/lftnav_bhealth_02.gif";

b2off=new Image(); b2off.src="images/lftnav_menopause_01.gif";
b2on=new Image(); b2on.src="images/lftnav_menopause_02.gif";

b3off=new Image(); b3off.src="images/lftnav_nrmlnhrpreg_01.gif";
b3on=new Image(); b3on.src="images/lftnav_nrmlnhrpreg_02.gif";

b4off=new Image(); b4off.src="images/lftnav_lls_01.gif";
b4on=new Image(); b4on.src="images/lftnav_lls_02.gif";

b5off=new Image(); b5off.src="images/lftnav_pms_01.gif";
b5on=new Image(); b5on.src="images/lftnav_pms_02.gif";

b6off=new Image(); b6off.src="images/lftnav_familyteenplaning_01.gif";
b6on=new Image(); b6on.src="images/lftnav_familyteenplaning_02.gif";

b7off=new Image(); b7off.src="images/lftnav_teencounselling_01.gif";
b7on=new Image(); b7on.src="images/lftnav_teencounselling_02.gif";

b8off=new Image(); b8off.src="images/bnrnav_bhealth_01.gif";
b8on=new Image(); b8on.src="images/bnrnav_bhealth_02.gif";

b9off=new Image(); b9off.src="images/bnrnav_nrmlnhrpreg_01.gif";
b9on=new Image(); b9on.src="images/bnrnav_nrmlnhrpreg_02.gif";

b10off=new Image(); b10off.src="images/bnrnav_menopause_01.gif";
b10on=new Image(); b10on.src="images/bnrnav_menopause_02.gif";

b11off=new Image(); b11off.src="images/bnrnav_lls_01.gif";
b11on=new Image(); b11on.src="images/bnrnav_lls_02.gif";

b12off=new Image(); b12off.src="images/bnrnav_pms_01.gif";
b12on=new Image(); b12on.src="images/bnrnav_pms_02.gif";

b13off=new Image(); b13off.src="images/bnrnav_familyteenplaning_01.gif";
b13on=new Image(); b13on.src="images/bnrnav_familyteenplaning_02.gif";

b14off=new Image(); b14off.src="images/bnrnav_teencounselling_01.gif";
b14on=new Image(); b14on.src="images/bnrnav_teencounselling_02.gif";

b15off=new Image(); b15off.src="images/bnrnav_photogallery_01.gif";
b15on=new Image(); b15on.src="images/bnrnav_photogallery_02.gif";
}

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		document[loc].src = eval(loc + "on.src");
	}
}
function inact(bn){
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		document[loc].src = eval(loc + "off.src");
	}
}
 //-->