browser_ok=1;

m1_on = new Image(19,49);m1_on.src = "/pict/m_11_on.gif";
m2_on = new Image(19,65);m2_on.src = "/pict/m_12_on.gif";
m3_on = new Image(19,60);m3_on.src = "/pict/m_13_on.gif";
m4_on = new Image(19,55);m4_on.src = "/pict/m_14_on.gif";
m5_on = new Image(19,73);m5_on.src = "/pict/m_15_on.gif";
m6_on = new Image(19,47);m6_on.src = "/pict/m_16_on.gif";
m7_on = new Image(19,20);m7_on.src = "/pict/m_back_on.gif";
m8_on = new Image(37,74);m8_on.src = "/pict/arrow_on.gif";
m1_off = new Image(19,49);m1_off.src = "/pict/m_11_off.gif";
m2_off = new Image(19,65);m2_off.src = "/pict/m_12_off.gif";
m3_off = new Image(19,60);m3_off.src = "/pict/m_13_off.gif";
m4_off = new Image(19,55);m4_off.src = "/pict/m_14_off.gif";
m5_off = new Image(19,73);m5_off.src = "/pict/m_15_off.gif";
m6_off = new Image(19,47);m6_off.src = "/pict/m_16_off.gif";
m7_off = new Image(19,20);m7_off.src = "/pict/m_back_off.gif";
m8_off = new Image(37,74);m8_off.src = "/pict/arrow_off.gif";

function m_on(n){
if (browser_ok &&  n==1) {document ["m1"].src = m1_on.src;}
if (browser_ok &&  n==2) {document ["m2"].src = m2_on.src;}
if (browser_ok &&  n==3) {document ["m3"].src = m3_on.src;}
if (browser_ok &&  n==4) {document ["m4"].src = m4_on.src;}
if (browser_ok &&  n==5) {document ["m5"].src = m5_on.src;}
if (browser_ok &&  n==6) {document ["m6"].src = m6_on.src;}
if (browser_ok &&  n==7) {document ["m7"].src = m7_on.src;}
if (browser_ok &&  n==8) {document ["m8"].src = m8_on.src;}
}

function m_off(n){
if (browser_ok &&  n==1) {document ["m1"].src = m1_off.src;}
if (browser_ok &&  n==2) {document ["m2"].src = m2_off.src;}
if (browser_ok &&  n==3) {document ["m3"].src = m3_off.src;}
if (browser_ok &&  n==4) {document ["m4"].src = m4_off.src;}
if (browser_ok &&  n==5) {document ["m5"].src = m5_off.src;}
if (browser_ok &&  n==6) {document ["m6"].src = m6_off.src;}
if (browser_ok &&  n==7) {document ["m7"].src = m7_off.src;}
if (browser_ok &&  n==8) {document ["m8"].src = m8_off.src;}
}