// inactive images navigation







	ref1off = new Image();



	ref1off.src = "pics/nv/snv_ref_af_i.gif";



	ref2off = new Image();



	ref2off.src = "pics/nv/snv_ref_gz_i.gif"; 



	ref3off = new Image();



	ref3off.src = "pics/nv/snv_ref_cf1_i.gif";

	

	ref4off = new Image();



	ref4off.src = "pics/nv/snv_ref_cf2_i.gif";

	

	





	







	



	// active images navigation







	ref1on = new Image();



	ref1on.src = "pics/nv/snv_ref_af_a.gif";



	ref2on = new Image();



	ref2on.src = "pics/nv/snv_ref_gz_a.gif"; 



	ref3on = new Image();



	ref3on.src = "pics/nv/snv_ref_cf1_a.gif";

	

	ref4on = new Image();



	ref4on.src = "pics/nv/snv_ref_cf2_a.gif";

	

	

	



	



	







	



function comOff(imgName) {



   if (document.images) {



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



        }



}







function comOn(imgName) {



        if (document.images) {



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



        }



}