//the next 3 lines are browser detection for user-agent DOMS
ns4 = (document.layers) ? true:false //required for Functions to work
ie4 = (document.all) ? true:false //required for Functions to work
ng5 = (document.getElementById) ? true:false //required for Functions to work

function hideSec() {
if (ng5) document.getElementById('sec0').style.visibility = "hidden"
else if (ns4) document.sec0.visibility = "hide"
else if (ie4) sec0.style.visibility ="hidden"

if (ng5) document.getElementById('sec1').style.visibility = "hidden"
else if (ns4) document.sec1.visibility = "hide"
else if (ie4) sec1.style.visibility ="hidden"

if (ng5) document.getElementById('sec2').style.visibility = "hidden"
else if (ns4) document.sec2.visibility = "hide"
else if (ie4) sec2.style.visibility ="hidden"

if (ng5) document.getElementById('sec3').style.visibility = "hidden"
else if (ns4) document.sec3.visibility = "hide"
else if (ie4) sec3.style.visibility ="hidden"

if (ng5) document.getElementById('sec4').style.visibility = "hidden"
else if (ns4) document.sec4.visibility = "hide"
else if (ie4) sec4.style.visibility ="hidden"

if (ng5) document.getElementById('sec5').style.visibility = "hidden"
else if (ns4) document.sec5.visibility = "hide"
else if (ie4) sec5.style.visibility ="hidden"

}

function showSec(n) {
hideSec();
if (ng5) document.getElementById('sec' + n).style.visibility = "visible";
else if (ns4) document.layers["sec" + n].visibility = "show";
else if (ie4) document.all["sec" + n].style.visibility = "visible";
if (ng5) document.getElementById('sec6').style.visibility = "visible";
else if (ns4) document.layers["sec6"].visibility = "show";
else if (ie4) document.all["sec6"].style.visibility = "visible";
if (ng5) document.getElementById('sec8').style.visibility = "visible";
else if (ns4) document.layers["sec8"].visibility = "show";
else if (ie4) document.all["sec8"].style.visibility = "visible";
if (ng5) document.getElementById('sec7').style.visibility = "visible";
else if (ns4) document.layers["sec7"].visibility = "show";
else if (ie4) document.all["sec7"].style.visibility = "visible";
}

function showStart() {
hideSec();
if (ng5) document.getElementById('sec6').style.visibility = "hidden";
else if (ns4) document.layers["sec6"].visibility = "hide";
else if (ie4) document.all["sec6"].style.visibility = "hidden";
if (ng5) document.getElementById('sec7').style.visibility = "visible";
else if (ns4) document.layers["sec7"].visibility = "show";
else if (ie4) document.all["sec7"].style.visibility = "visible";
if (ng5) document.getElementById('sec8').style.visibility = "hidden";
else if (ns4) document.layers["sec8"].visibility = "hide";
else if (ie4) document.all["sec8"].style.visibility = "hidden";
if (ng5) document.getElementById('sec0').style.visibility = "visible";
else if (ns4) document.layers["sec0"].visibility = "show";
else if (ie4) document.all["sec0"].style.visibility = "visible";
}