NS4 = document.layers;

if (NS4) {
	origWidth = innerWidth;
	origHeight = innerHeight;
}

function reDo() {
	if (innerWidth != origWidth || innerHeight != origHeight)
	location.reload();
}
if (NS4) onresize = reDo;

//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('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" 
} 

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"; 
} 

function showAllSec(n) { 
	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"; 
}