var pngAlpha = false;
var pngNormal = false;

var browser = new BrowserDetect();

// if IE5.5+ on Win32, then display PNGs with AlphaImageLoader
if ((browser.isIE55 || browser.isIE6x) && browser.isWin32) {
	var pngAlpha = true;
// else, if the browser can display PNGs normally, then do that
} else if ((browser.isGecko) ||
           (browser.isIE7up) ||
           (browser.isSafari) ||
           (browser.isIE5up && browser.isMac) ||
           (browser.isOpera && browser.isWin && browser.versionMajor >= 6) ||
           (browser.isOpera && browser.isUnix && browser.versionMajor >= 6) ||
           (browser.isOpera && browser.isMac && browser.versionMajor >= 5) ||
           (browser.isOmniweb && browser.versionMinor >= 3.1) ||
           (browser.isIcab && browser.versionMinor >= 1.9) ||
           (browser.isWebtv) ||
           (browser.isDreamcast)) {
	var pngNormal = true;
}

function draw_border(side) {	
	if (pngAlpha) {
		document.write("<div style='height:100%;width:16px;filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src="+"/images/"+side+"_border.png"+", sizingMethod=scale);'></div>");
	} else if (pngNormal) {
		document.write("<div style='height:100%;width:16px;background-image:url("+"/images/"+side+"_border.png"+");'></div>");
	} else {
		document.write("<div style='height:100%;width:16px;background-image:url("+"/images/"+side+"_border.gif"+");'></div>");
	}
}

function popupTour() {
	window.open("tour/index.html","tour","directories=no,height=574,width=780,left=100,top=100,menubar=no,status=no,resizable=no,scrollbars=no,titlebar=no,toolbar=no");
}

function Tour() { // same as above function
	window.open("tour/index.html","tour","directories=no,height=574,width=780,left=100,top=100,menubar=no,status=no,resizable=no,scrollbars=no,titlebar=no,toolbar=no");
}

//set for target call in tour popup
window.name = "parent";