//slideshow

var IE = document.all?true:false;
if (!IE) document.captureEvents(Event.MOUSEMOVE)
document.onmousemove = getMouseXY;
var tempY = 0;

function getMouseXY(e) {
	if (IE) { // grab the x-y pos.s if browser is IE
		tempY = event.clientY + document.body.scrollTop - 24;
	}
	else {  // grab the x-y pos.s if browser is NS
		tempY = e.pageY -22;
	}  
	if (tempY < 0) tempY = 0; 
}

function slide(no,c) {
	if(no>0) trackTag('slide' + no);
	if(c) picNav(no,1);
    var thisPic ='<img src="' + slideObj[no].url + '" alt="slide pic no ' + String(no+1) + '" width="500" height="375" border="0"/>';
    var thisNav ='';
    if (no > 0) 
		thisNav += '<div class="darr" onClick="slide(' + String(no - 1) + ')" class="color"><img src="' + imgdir + '/pix/lsmarr.gif" width="10" hspace="2" vspace="3" height="11" border="0"/></div>';
	else thisNav += '<div class="narr">&nbsp;</div>';
    thisNav += '<div class="carr"><b>' + String(no+1) + '</b>/' + thisNo + '</div>';
    if (no < thisNo - 1) 
		thisNav += '<div class="darr" onClick="slide(' + String(no + 1) + ')" class="color"><img src="' + imgdir + '/pix/rsmarr.gif" width="10" hspace="2" vspace="3" height="11" border="0"/></div>';
	else thisNav += '<div class="narr">&nbsp;</div>';
    document.getElementById('slidepic').innerHTML = '<div onMouseOver="picNav(' + no + ',1);" onMouseOut="picNav(' + no + ',0);">' + thisPic + '</div>';
    document.getElementById('slidecap').innerHTML = slideObj[no].cap;
    document.getElementById('slidenav').innerHTML = thisNav;
}

function picNav(no,b) {
	if (b) {
		var overlay = '<div id="overlayleft">';
		if (no > 0) 
			overlay += '<a href="javascript:slide(' + String(no - 1) + ',1)"><img src="' + imgdir + '/pix/slideshow_arrow_left.png" width="28" height="46" border="0"/></a>';
		overlay += '</div><div id="overlayright">';
		if (no < thisNo - 1) 
			overlay += '<a href="javascript:slide(' + String(no + 1) + ',1)"><img src="' + imgdir + '/pix/slideshow_arrow_right.png" width="28" height="46" border="0"/></a>';
		overlay += '</div>';
		document.getElementById('overlay').innerHTML = overlay;
		document.getElementById('overlayleft').style.display = 'block';
		document.getElementById('overlayright').style.display = 'block';
	} else {
		if (tempY < 396 || tempY > 443) {
			document.getElementById('overlayleft').style.display = 'none';
			document.getElementById('overlayright').style.display = 'none';
		}
	}
}