blnDOM = (document.getElementById) ? true : false;
blnNS4 = (document.layers) ? true : false;
blnIE = (document.all) ? true : false;
blnIE4 = blnIE && !blnDOM;
blnIE5 = (navigator.appVersion.indexOf("MSIE 5.0") != -1);
blnNS6 = blnDOM && !blnIE;
blnMac = (navigator.appVersion.indexOf("Mac") != -1);
blnOpera = (navigator.userAgent.indexOf("Opera")!=-1);
blnKonqueror = (navigator.userAgent.indexOf("Konqueror")!=-1);

//Swap images with an optional fade effect
var transitionToggle = 0;

function imgToggle(id,name,transitionDisable)
	{
	if (transitionDisable || !document.images[id].filters || blnIE5 || blnNS4)
		{
		if (document.images)
			{
			document.images[id].src=eval(name+".src");
			}
		}
	else
		{
		document.images[id].filters[0].Apply();
		// After setting Apply, changes to the object
		// are not displayed until Play is called.

		if (transitionToggle)
			{
			transitionToggle = 0;
			document.images[id].src=eval(name+".src");
			}
		else
			{
			transitionToggle = 1;
			document.images[id].src=eval(name+".src");
			}
		document.images[id].filters[0].Play();
		}
	}

if (document.images)
	{
//BUTTON
	fd_logo_top_small_off = new Image();fd_logo_top_small_off.src = '/images/fd_logo_top_small_off.gif';
	fd_logo_top_small_on = new Image();fd_logo_top_small_on.src = '/images/fd_logo_top_small_on.gif';
	optimux_logo_top_small_off = new Image();optimux_logo_top_small_off.src = '/images/optimux_logo_top_small_off.gif';
	optimux_logo_top_small_on = new Image();optimux_logo_top_small_on.src = '/images/optimux_logo_top_small_on.gif';
	delatite_off = new Image();delatite_off.src = '/images/delatite_off.gif';
	delatite_on = new Image();delatite_on.src = '/images/delatite_on.gif';
	somas_logo_top_small_off = new Image();somas_logo_top_small_off.src = '/images/somas_logo_top_small_off.gif';
	somas_logo_top_small_on = new Image();somas_logo_top_small_on.src = '/images/somas_logo_top_small_on.gif';
	severn_logo_top_small_off = new Image();severn_logo_top_small_off.src = '/images/severn_logo_top_small_off.gif';
	severn_logo_top_small_on = new Image();severn_logo_top_small_on.src = '/images/severn_logo_top_small_on.gif';
	}