function showhide(thisDiv, state) {

	if (state == 'visible') {
		state = 'hidden';
	}
	else {
		state = 'visible';
	}
	if (document.all) { //IS IE 4 or 5 (or 6 beta)
		eval( "document.all." + thisDiv + ".style.visibility = state");
	}
	if (document.layers) { //IS NETSCAPE 4 or below
		document.layers[thisDiv].visibility = state;
	}
	if (document.getElementById && !document.all) {
		 document.getElementById(thisDiv).style.visibility = state;
	}
}

function vanish(visibleDivAr) {
	var state = 'hidden';
	for (var i=visibleDivAr.length-1; i>=0; --i){
		if (document.all) { //IS IE 4 or 5 (or 6 beta)
			eval( "document.all." + visibleDivAr[i] + ".style.visibility = state");
		}
		if (document.layers) { //IS NETSCAPE 4 or below
			document.layers[visibleDivAr[i]].visibility = state;
		}
		if (document.getElementById && !document.all) {
			document.getElementById(visibleDivAr[i]).style.visibility = state;
		}
	}
}

function displayQuestions(div1,state1) {
	document.getElementById(div1).style.position = state1;	
}