ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false

// Microsoft Check.
if (ie4) { if (navigator.userAgent.indexOf('MSIE 5')>0) { ie5 = true; } else { ie5 = false; } } else { ie5 = false; }

var offsetx = 20;
var offsety = -200;
var x = 0;
var y = 0;
var snow = 0;
var sw = 0;
var cnt = 0;
var tr = 1;
if ( (ns4) || (ie4) ) {
if (ns4) over = document.overDiv
if (ie4) over = overDiv.style
document.onmousemove = mouseMove
if (ns4) document.captureEvents(Event.MOUSEMOVE)
}

// Clears popups if appropriate
function nd() {
if ( cnt >= 1 ) { sw = 0 };
if ( (ns4) || (ie4) ) {
if ( sw == 0 ) {
snow = 0;
hideObject(over);
} else {
cnt++;
}
}
}

// Caption popup
function box(coverid) {
txt = "<TABLE WIDTH=360><TR><TD><img src=\""+coverid+"\"</TD></TR></TABLE>"
layerWrite(txt);
if ( (ns4) || (ie4) ) {
if (snow == 0) {
moveTo(over,x+offsetx,y+offsety);
showObject(over);
snow = 1;
}
}
}

// Moves the layer
function mouseMove(e) {
if (ns4) {x=e.pageX; y=e.pageY;} else {x=event.x+document.body.scrollLeft; y=event.y+document.body.scrollTop;}
if (snow) { moveTo(over,x+offsetx,y+offsety); }
}

// Writes to a layer
function layerWrite(txt) {
if (ns4) {
var lyr = document.overDiv.document
lyr.write(txt)
lyr.close()
}
else if (ie4) document.all["overDiv"].innerHTML = txt
}

// Make an object visible
function showObject(obj) {
if (ns4) obj.visibility = "show"
else if (ie4) obj.visibility = "visible"
}

// Hides an object
function hideObject(obj) {
if (ns4) obj.visibility = "hide"
else if (ie4) obj.visibility = "hidden"
}

// Move a layer
function moveTo(obj,xL,yL) {
obj.left = xL
obj.top = yL
}