var IsIE = (navigator.appName.indexOf("Microsoft") >= 0)
var IsNN = (navigator.appName.indexOf("Netscape") >= 0)
var BrowserVersion = parseInt(navigator.appVersion)
var IsNS4 = IsNN && (BrowserVersion < 5)

var lo_info = new Image;
lo_info.src = "../stdimg/info.gif"
var hi_info = new Image;
hi_info.src = "../highlight/info.gif"

var lo_worldmap = new Image;
lo_worldmap.src = "../stdimg/worldmap.gif"
var hi_worldmap = new Image;
hi_worldmap.src = "../highlight/worldmap.gif"

var lo_books = new Image;
lo_books.src = "../stdimg/books.gif"
var hi_books = new Image;
hi_books.src = "../highlight/books.gif"

var lo_plane = new Image;
lo_plane.src = "../stdimg/plane.gif"
var hi_plane = new Image;
hi_plane.src = "../highlight/plane.gif"

var lo_bustrain = new Image;
lo_bustrain.src = "../stdimg/bustrain.gif"
var hi_bustrain = new Image;
hi_bustrain.src = "../highlight/bustrain.gif"

var lo_bed = new Image;
lo_bed.src = "../stdimg/bed.gif"
var hi_bed = new Image;
hi_bed.src = "../highlight/bed.gif"

var lo_walks = new Image;
lo_walks.src = "../stdimg/walks.gif"
var hi_walks = new Image;
hi_walks.src = "../highlight/walks.gif"

var lo_radiobuttons = new Image;
lo_radiobuttons.src = "../stdimg/radiobuttons.gif"
var hi_radiobuttons = new Image;
hi_radiobuttons.src = "../highlight/radiobuttons.gif"

function init() {
var IsIE = (navigator.appName.indexOf("Microsoft") >= 0)
var IsNN = (navigator.appName.indexOf("Netscape") >= 0)
var BrowserVersion = parseInt(navigator.appVersion)
var IsNS4 = IsNN && (BrowserVersion < 5)
}

function hilight(el,cue) {
var imgObj=eval("document.images['"+el+"']")
var imgSrc=eval("hi_"+el)
imgObj.src = imgSrc.src
window.status = cue
}

function lolight(el) {
var imgObj=eval("document.images['"+el+"']")
var imgSrc=eval("lo_"+el)
imgObj.src = imgSrc.src
window.status = ""
}

function gotopage(el) {
parent.svbody.location="../"+parent.svfooter.document.frmFooter.clickpic.value+"/"+el+".htm"
parent.svfooter.document.frmFooter.svbody.value="info"
parent.svfooter.document.frmFooter.svinfo.value=el
}

function block(el) {
if (IsNS4) {
	doblock(el);
} else {
	if (parent.svtoptools.readyState="complete") {
	doblock(el);
	} else {
	setTimeout("block("+el+")",500);
	}
}
}


function doblock(el) {
var standard='info,worldmap,books,plane,bustrain,bed,walks,radiobuttons';
var b=standard.split(',');
	for (i=0; i< b.length; i++) {
	window.status=b[i];
		if (el.indexOf(b[i]) == -1) {
			if (IsNS4) {
			parent.svtoptools.document.images[i].visibility="visible";
			} else {
			parent.svtoptools.document.images[i].style.visibility="visible";
			}
		} else {
			if (IsNS4) {
			parent.svtoptools.document.images[i].visibility="hidden";
			} else {
			parent.svtoptools.document.images[i].style.visibility="hidden";
			}
		}
	}
}