// JavaScript Document
if(navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 4 && parseInt(navigator.appVersion) < 5 ) {
	nav = "ns4";
	doc = "document.";
	sty = "";
	}
else if (navigator.appName == 'Microsoft Internet Explorer' && parseInt(navigator.appVersion) >= 4){
	nav = "ie4";
	doc = "document.all.";
	sty = ".style";
}
else {
	nav = "docom";
	doc = "document.getElementById('";
	sty = "').style";
	}

var sqtObj = [];
	
function preLarge() {
	
	for (i=1; i<5; i++) {
	sqtObj[i] = eval(doc + 'sqt' + i + sty);
}}


function hide(scr) {
	
	sqtObj[scr].visibility = "hidden";
					
}

function show(scr) {
	
	sqtObj[scr].visibility = "visible";
				
}
//-->