// javascript function panel1() { 

function panel1() { document.getElementById('panel1').style.display = 'block'; }
function panel1_hide() { document.getElementById('panel1').style.display = 'none'; }

function panel2() { document.getElementById('panel2').style.display = 'block'; }
function panel2_hide() { document.getElementById('panel2').style.display = 'none'; }

function panel3() { document.getElementById('panel3').style.display = 'block'; }
function panel3_hide() { document.getElementById('panel3').style.display = 'none'; }

function panel4() { document.getElementById('panel4').style.display = 'block'; }
function panel4_hide() { document.getElementById('panel4').style.display = 'none'; }

function panel5() { document.getElementById('panel5').style.display = 'block'; }
function panel5_hide() { document.getElementById('panel5').style.display = 'none'; }

function panel6() { document.getElementById('panel6').style.display = 'block'; }
function panel6_hide() { document.getElementById('panel6').style.display = 'none'; }

function panel7() { document.getElementById('panel7').style.display = 'block'; }
function panel7_hide() { document.getElementById('panel7').style.display = 'none'; }

function panel8() { document.getElementById('panel8').style.display = 'block'; }
function panel8_hide() { document.getElementById('panel8').style.display = 'none'; }