function b1_on(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2sw.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3sw.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4sw.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5sw.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6sw.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7sw.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8sw.png';
	document.getElementById('nav_b2').style.visibility='hidden';
	document.getElementById('nav_b3').style.visibility='hidden';
	document.getElementById('nav_b4').style.visibility='hidden';
	document.getElementById('nav_b5').style.visibility='hidden';
	document.getElementById('nav_b6').style.visibility='hidden';
	document.getElementById('nav_b7').style.visibility='hidden';
	document.getElementById('nav_b8').style.visibility='hidden';
}
function b1_out(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8.png';
	document.getElementById('nav_b2').style.visibility='visible';
	document.getElementById('nav_b3').style.visibility='visible';
	document.getElementById('nav_b4').style.visibility='visible';
	document.getElementById('nav_b5').style.visibility='visible';
	document.getElementById('nav_b6').style.visibility='visible';
	document.getElementById('nav_b7').style.visibility='visible';
	document.getElementById('nav_b8').style.visibility='visible';
}
function b2_on(){
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1sw.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3sw.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4sw.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5sw.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6sw.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7sw.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8sw.png';
	document.getElementById('nav_b1').style.visibility='hidden';
	document.getElementById('nav_b3').style.visibility='hidden';
	document.getElementById('nav_b4').style.visibility='hidden';
	document.getElementById('nav_b5').style.visibility='hidden';
	document.getElementById('nav_b6').style.visibility='hidden';
	document.getElementById('nav_b7').style.visibility='hidden';
	document.getElementById('nav_b8').style.visibility='hidden';
}
function b2_out(){
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8.png';
	document.getElementById('nav_b1').style.visibility='visible';
	document.getElementById('nav_b3').style.visibility='visible';
	document.getElementById('nav_b4').style.visibility='visible';
	document.getElementById('nav_b5').style.visibility='visible';
	document.getElementById('nav_b6').style.visibility='visible';
	document.getElementById('nav_b7').style.visibility='visible';
	document.getElementById('nav_b8').style.visibility='visible';
}
function b3_on(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2sw.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1sw.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4sw.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5sw.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6sw.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7sw.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8sw.png';
	document.getElementById('nav_b2').style.visibility='hidden';
	document.getElementById('nav_b1').style.visibility='hidden';
	document.getElementById('nav_b4').style.visibility='hidden';
	document.getElementById('nav_b5').style.visibility='hidden';
	document.getElementById('nav_b6').style.visibility='hidden';
	document.getElementById('nav_b7').style.visibility='hidden';
	document.getElementById('nav_b8').style.visibility='hidden';
}
function b3_out(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8.png';
	document.getElementById('nav_b2').style.visibility='visible';
	document.getElementById('nav_b1').style.visibility='visible';
	document.getElementById('nav_b4').style.visibility='visible';
	document.getElementById('nav_b5').style.visibility='visible';
	document.getElementById('nav_b6').style.visibility='visible';
	document.getElementById('nav_b7').style.visibility='visible';
	document.getElementById('nav_b8').style.visibility='visible';
}
function b4_on(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2sw.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3sw.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1sw.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5sw.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6sw.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7sw.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8sw.png';
	document.getElementById('nav_b2').style.visibility='hidden';
	document.getElementById('nav_b3').style.visibility='hidden';
	document.getElementById('nav_b1').style.visibility='hidden';
	document.getElementById('nav_b5').style.visibility='hidden';
	document.getElementById('nav_b6').style.visibility='hidden';
	document.getElementById('nav_b7').style.visibility='hidden';
	document.getElementById('nav_b8').style.visibility='hidden';
}
function b4_out(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8.png';
	document.getElementById('nav_b2').style.visibility='visible';
	document.getElementById('nav_b3').style.visibility='visible';
	document.getElementById('nav_b1').style.visibility='visible';
	document.getElementById('nav_b5').style.visibility='visible';
	document.getElementById('nav_b6').style.visibility='visible';
	document.getElementById('nav_b7').style.visibility='visible';
	document.getElementById('nav_b8').style.visibility='visible';
}
function b5_on(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2sw.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3sw.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4sw.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1sw.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6sw.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7sw.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8sw.png';
	document.getElementById('nav_b2').style.visibility='hidden';
	document.getElementById('nav_b3').style.visibility='hidden';
	document.getElementById('nav_b4').style.visibility='hidden';
	document.getElementById('nav_b1').style.visibility='hidden';
	document.getElementById('nav_b6').style.visibility='hidden';
	document.getElementById('nav_b7').style.visibility='hidden';
	document.getElementById('nav_b8').style.visibility='hidden';
}
function b5_out(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8.png';
	document.getElementById('nav_b2').style.visibility='visible';
	document.getElementById('nav_b3').style.visibility='visible';
	document.getElementById('nav_b4').style.visibility='visible';
	document.getElementById('nav_b1').style.visibility='visible';
	document.getElementById('nav_b6').style.visibility='visible';
	document.getElementById('nav_b7').style.visibility='visible';
	document.getElementById('nav_b8').style.visibility='visible';
}
function b6_on(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2sw.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3sw.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4sw.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5sw.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1sw.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7sw.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8sw.png';
	document.getElementById('nav_b2').style.visibility='hidden';
	document.getElementById('nav_b3').style.visibility='hidden';
	document.getElementById('nav_b4').style.visibility='hidden';
	document.getElementById('nav_b5').style.visibility='hidden';
	document.getElementById('nav_b1').style.visibility='hidden';
	document.getElementById('nav_b7').style.visibility='hidden';
	document.getElementById('nav_b8').style.visibility='hidden';
}
function b6_out(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8.png';
	document.getElementById('nav_b2').style.visibility='visible';
	document.getElementById('nav_b3').style.visibility='visible';
	document.getElementById('nav_b4').style.visibility='visible';
	document.getElementById('nav_b5').style.visibility='visible';
	document.getElementById('nav_b1').style.visibility='visible';
	document.getElementById('nav_b7').style.visibility='visible';
	document.getElementById('nav_b8').style.visibility='visible';
}
function b7_on(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2sw.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3sw.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4sw.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5sw.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6sw.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1sw.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8sw.png';
	document.getElementById('nav_b2').style.visibility='hidden';
	document.getElementById('nav_b3').style.visibility='hidden';
	document.getElementById('nav_b4').style.visibility='hidden';
	document.getElementById('nav_b5').style.visibility='hidden';
	document.getElementById('nav_b6').style.visibility='hidden';
	document.getElementById('nav_b1').style.visibility='hidden';
	document.getElementById('nav_b8').style.visibility='hidden';
}
function b7_out(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1.png';
	document.getElementById('b_8').src='../bujinkan-ninjutsu-pics/button8.png';
	document.getElementById('nav_b2').style.visibility='visible';
	document.getElementById('nav_b3').style.visibility='visible';
	document.getElementById('nav_b4').style.visibility='visible';
	document.getElementById('nav_b5').style.visibility='visible';
	document.getElementById('nav_b6').style.visibility='visible';
	document.getElementById('nav_b1').style.visibility='visible';
	document.getElementById('nav_b8').style.visibility='visible';
}
function b8_on(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2sw.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3sw.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4sw.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5sw.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6sw.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7sw.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1sw.png';
	document.getElementById('nav_b2').style.visibility='hidden';
	document.getElementById('nav_b3').style.visibility='hidden';
	document.getElementById('nav_b4').style.visibility='hidden';
	document.getElementById('nav_b5').style.visibility='hidden';
	document.getElementById('nav_b6').style.visibility='hidden';
	document.getElementById('nav_b7').style.visibility='hidden';
	document.getElementById('nav_b1').style.visibility='hidden';
}
function b8_out(){
	document.getElementById('b_2').src='../bujinkan-ninjutsu-pics/button2.png';
	document.getElementById('b_3').src='../bujinkan-ninjutsu-pics/button3.png';
	document.getElementById('b_4').src='../bujinkan-ninjutsu-pics/button4.png';
	document.getElementById('b_5').src='../bujinkan-ninjutsu-pics/button5.png';
	document.getElementById('b_6').src='../bujinkan-ninjutsu-pics/button6.png';
	document.getElementById('b_7').src='../bujinkan-ninjutsu-pics/button7.png';
	document.getElementById('b_1').src='../bujinkan-ninjutsu-pics/button1.png';
	document.getElementById('nav_b2').style.visibility='visible';
	document.getElementById('nav_b3').style.visibility='visible';
	document.getElementById('nav_b4').style.visibility='visible';
	document.getElementById('nav_b5').style.visibility='visible';
	document.getElementById('nav_b6').style.visibility='visible';
	document.getElementById('nav_b7').style.visibility='visible';
	document.getElementById('nav_b1').style.visibility='visible';
}