var isIE = false;

// Browser Detect  v2.1.6
// documentation: http://www.dithered.com/javascript/browser_detect/index.html
// license: http://creativecommons.org/licenses/by/1.0/
// code by Chris Nott (chris[at]dithered[dot]com)


function BrowserDetect() {
   var ua = navigator.userAgent.toLowerCase(); 

   // browser engine name
   this.isGecko       = (ua.indexOf('gecko') != -1 && ua.indexOf('safari') == -1);
   this.isAppleWebKit = (ua.indexOf('applewebkit') != -1);

   // browser name
   this.isKonqueror   = (ua.indexOf('konqueror') != -1); 
   this.isSafari      = (ua.indexOf('safari') != - 1);
   this.isOmniweb     = (ua.indexOf('omniweb') != - 1);
   this.isOpera       = (ua.indexOf('opera') != -1); 
   this.isIcab        = (ua.indexOf('icab') != -1); 
   this.isAol         = (ua.indexOf('aol') != -1); 
   this.isIE          = (ua.indexOf('msie') != -1 && !this.isOpera && (ua.indexOf('webtv') == -1) ); 
   this.isMozilla     = (this.isGecko && ua.indexOf('gecko/') + 14 == ua.length);
   this.isFirebird    = (ua.indexOf('firebird/') != -1);
   this.isNS          = ( (this.isGecko) ? (ua.indexOf('netscape') != -1) : ( (ua.indexOf('mozilla') != -1) && !this.isOpera && !this.isSafari && (ua.indexOf('spoofer') == -1) && (ua.indexOf('compatible') == -1) && (ua.indexOf('webtv') == -1) && (ua.indexOf('hotjava') == -1) ) );
   
   // spoofing and compatible browsers
   this.isIECompatible = ( (ua.indexOf('msie') != -1) && !this.isIE);
   this.isNSCompatible = ( (ua.indexOf('mozilla') != -1) && !this.isNS && !this.isMozilla);
   
   // rendering engine versions
   this.geckoVersion = ( (this.isGecko) ? ua.substring( (ua.lastIndexOf('gecko/') + 6), (ua.lastIndexOf('gecko/') + 14) ) : -1 );
   this.equivalentMozilla = ( (this.isGecko) ? parseFloat( ua.substring( ua.indexOf('rv:') + 3 ) ) : -1 );
   this.appleWebKitVersion = ( (this.isAppleWebKit) ? parseFloat( ua.substring( ua.indexOf('applewebkit/') + 12) ) : -1 );
   
   // browser version
   this.versionMinor = parseFloat(navigator.appVersion); 
   
   // correct version number
   if (this.isGecko && !this.isMozilla) {
      this.versionMinor = parseFloat( ua.substring( ua.indexOf('/', ua.indexOf('gecko/') + 6) + 1 ) );
   }
   else if (this.isMozilla) {
      this.versionMinor = parseFloat( ua.substring( ua.indexOf('rv:') + 3 ) );
   }
   else if (this.isIE && this.versionMinor >= 4) {
      this.versionMinor = parseFloat( ua.substring( ua.indexOf('msie ') + 5 ) );
   }
   else if (this.isKonqueror) {
      this.versionMinor = parseFloat( ua.substring( ua.indexOf('konqueror/') + 10 ) );
   }
   else if (this.isSafari) {
      this.versionMinor = parseFloat( ua.substring( ua.lastIndexOf('safari/') + 7 ) );
   }
   else if (this.isOmniweb) {
      this.versionMinor = parseFloat( ua.substring( ua.lastIndexOf('omniweb/') + 8 ) );
   }
   else if (this.isOpera) {
      this.versionMinor = parseFloat( ua.substring( ua.indexOf('opera') + 6 ) );
   }
   else if (this.isIcab) {
      this.versionMinor = parseFloat( ua.substring( ua.indexOf('icab') + 5 ) );
   }
   
   this.versionMajor = parseInt(this.versionMinor); 
   
   // dom support
   this.isDOM1 = (document.getElementById);
   this.isDOM2Event = (document.addEventListener && document.removeEventListener);
   
   // css compatibility mode
   this.mode = document.compatMode ? document.compatMode : 'BackCompat';

   // platform
   this.isWin    = (ua.indexOf('win') != -1);
   this.isWin32  = (this.isWin && ( ua.indexOf('95') != -1 || ua.indexOf('98') != -1 || ua.indexOf('nt') != -1 || ua.indexOf('win32') != -1 || ua.indexOf('32bit') != -1 || ua.indexOf('xp') != -1) );
   this.isMac    = (ua.indexOf('mac') != -1);
   this.isUnix   = (ua.indexOf('unix') != -1 || ua.indexOf('sunos') != -1 || ua.indexOf('bsd') != -1 || ua.indexOf('x11') != -1)
   this.isLinux  = (ua.indexOf('linux') != -1);
   
   // specific browser shortcuts
   this.isNS4x = (this.isNS && this.versionMajor == 4);
   this.isNS40x = (this.isNS4x && this.versionMinor < 4.5);
   this.isNS47x = (this.isNS4x && this.versionMinor >= 4.7);
   this.isNS4up = (this.isNS && this.versionMinor >= 4);
   this.isNS6x = (this.isNS && this.versionMajor == 6);
   this.isNS6up = (this.isNS && this.versionMajor >= 6);
   this.isNS7x = (this.isNS && this.versionMajor == 7);
   this.isNS7up = (this.isNS && this.versionMajor >= 7);
   
   this.isIE4x = (this.isIE && this.versionMajor == 4);
   this.isIE4up = (this.isIE && this.versionMajor >= 4);
   this.isIE5x = (this.isIE && this.versionMajor == 5);
   this.isIE55 = (this.isIE && this.versionMinor == 5.5);
   this.isIE5up = (this.isIE && this.versionMajor >= 5);
   this.isIE6x = (this.isIE && this.versionMajor == 6);
   this.isIE6up = (this.isIE && this.versionMajor >= 6);
   
   this.isIE4xMac = (this.isIE4x && this.isMac);
}

var browser = new BrowserDetect();


function createXMLHttpRequest() {
	req = null;
	
	
	if ( window.XMLHttpRequest ) {
		req = new XMLHttpRequest();
		
	} else if ( window.ActiveXObject ) { 
		isIE = true;
		req = new ActiveXObject( "Msxml2.XMLHTTP" );
		if ( req != null ) {
			req = new ActiveXObject( "Microsoft.XMLHTTP" );
		}
	}	
	return req;	
}


function getElementTextNS( prefix, local, parentElem, index ) {
	

 	
	var result = null;
	if ( parentElem == null ) return ""
	
	
	if ( prefix && browser.isIE ) {
        
        result = parentElem.getElementsByTagName( prefix + ":" + local )[index];
    } else {
        
        result = parentElem.getElementsByTagName( local )[index];
    }
	
	
	
	if ( result != null ) {
		
		

		
		if (result.childNodes.length > 1) {
			var temp = "";
			for ( var i = 0; i < result.childNodes.length; i++ ) {
				temp = temp + result.childNodes[ i ].nodeValue;
			}
            return temp
        } else {
            if ( result.firstChild != null ) {
				return result.firstChild.nodeValue;  
			} else {
				return "";
			}  		
        }
	} else {
		
		return "" ;
	}
}; 

function trimString( str ) {
	str = str.replace( /^\s+/g, "" );
	str = str.replace( /\s+$/g, "" );
	return str
};

function displayItem( id ) {
	var item = document.getElementById( id );
	if ( item != null ) item.style.display = "block";
	item = null;
};

function hideItem( id ) {
	var item = document.getElementById( id );
	if ( item != null ) { item.style.display = "none"; }
	item = null;
};

function setHref( id, url ) {
	

	var item = document.getElementById( id );
	if ( item != null ) item.setAttribute( "href", url );
	item = null;
};

function setImageSrc( id, url ) {
	var item = document.getElementById( id );
	if ( item != null ) item.setAttribute( "src", url );
	item = null;
};

function setImageHeight( id, h ) {
	var item = document.getElementById( id );
	if ( item != null ) item.setAttribute( "height", h );
	item = null;
};

function setImageWidth( id, w ) {
	var item = document.getElementById( id );
	if ( item != null ) item.setAttribute( "width", w );
	item = null;
};

function setImageAlt( id, alt ) {
	var item = document.getElementById( id );
	if ( item != null ) {
		if ( alt != "&nbsp;" && alt != "" ) {
			item.setAttribute( "alt", alt );
		} else {
			item.removeAttribute( "alt" );
		}
	}
	item = null;
};

function setInnerHTML( id, str ) { 
	
	
	var item = document.getElementById( id );
	if ( item != null ) { item.innerHTML = str; }
	item = null;
};

function stripHTML( str ) {
	var result = str; 
	
	var re1 = /<[^>]*>/gi;
	var re2 = /"/gi;
	
	result = result.replace( re1, "" );
	result = result.replace( re2, "" );
   	
	re1 = null; re2 = null;
	
	return result;
}

function encodeQueryStringParameter( str ) {
	var re = / /gi;
	var result = str.replace( re, '+' );
	
	re = null;
	
	return result;
};

function opacitySupported() {
	
		
	
	return false;
};

function xmlNotWellSupported() {
	

	return false;
};

function canHideOmnitureIframe() {
	

	if ( browser.isNS && ! browser.isNS7up ) return false;
	
	return true;
};

function changeTitleSupported() {
	

	if ( browser.isNS && ! browser.isNS7up ) return false;
	
	return true;
};

function dynamicBookmarksSupported() {
	

	if ( browser.isSafari ) return false;
	if ( browser.isNS7x && browser.versionMinor == 7.1 ) return false;
	
	return true;
};

function otherNotSupported() {
	
	
	if ( browser.isIE && browser.isMac ) return true; 

	return false;
};

function dynamicGallerySupported() {
	
	
	return ! xmlNotWellSupported() && changeTitleSupported() && ! otherNotSupported() ;
};