// convert all characters to lowercase to simplify testing
    var agt=navigator.userAgent.toLowerCase();

    // *** BROWSER VERSION ***
    // Note: On IE5, these return 4, so use is_ie5up to detect IE5.
    var is_major = parseInt(navigator.appVersion);
    var is_minor = parseFloat(navigator.appVersion);

    // Note: Opera and WebTV spoof Navigator.  We do strict client detection.
    // If you want to allow spoofing, take out the tests for opera and webtv.
    var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
    var is_nav2 = (is_nav && (is_major == 2));
    var is_nav3 = (is_nav && (is_major == 3));
    var is_nav4 = (is_nav && (is_major == 4));
    var is_nav4up = (is_nav && (is_major >= 4));
    var is_navonly      = (is_nav && ((agt.indexOf(";nav") != -1) ||
                          (agt.indexOf("; nav") != -1)) );
    var is_nav6 = (is_nav && (is_major == 5));
    var is_nav6up = (is_nav && (is_major >= 5));
    var is_gecko = (agt.indexOf('gecko') != -1);


    var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
    var is_ie3    = (is_ie && (is_major < 4));
    var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-1) );
    var is_ie4up  = (is_ie && (is_major >= 4));
    var is_ie5    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
    var is_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));
    var is_ie5up  = (is_ie && !is_ie3 && !is_ie4);
    var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);
    var is_ie6    = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.")!=-1) );
    var is_ie6up  = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5);

    // KNOWN BUG: On AOL4, returns false if IE3 is embedded browser
    // or if this is the first browser window opened.  Thus the
    // variables is_aol, is_aol3, and is_aol4 aren't 100% reliable.
    var is_aol   = (agt.indexOf("aol") != -1);
    var is_aol3  = (is_aol && is_ie3);
    var is_aol4  = (is_aol && is_ie4);
    var is_aol5  = (agt.indexOf("aol 5") != -1);
    var is_aol6  = (agt.indexOf("aol 6") != -1);

    var is_opera = (agt.indexOf("opera") != -1);
    var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
    var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
    var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
    var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
    var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);

    var is_webtv = (agt.indexOf("webtv") != -1); 

    var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
    var is_AOLTV = is_TVNavigator;

    var is_hotjava = (agt.indexOf("hotjava") != -1);
    var is_hotjava3 = (is_hotjava && (is_major == 3));
    var is_hotjava3up = (is_hotjava && (is_major >= 3));

    // *** JAVASCRIPT VERSION CHECK ***
    var is_js;
    if (is_nav2 || is_ie3) is_js = 1.0;
    else if (is_nav3) is_js = 1.1;
    else if (is_opera5up) is_js = 1.3;
    else if (is_opera) is_js = 1.1;
    else if ((is_nav4 && (is_minor <= 4.05)) || is_ie4) is_js = 1.2;
    else if ((is_nav4 && (is_minor > 4.05)) || is_ie5) is_js = 1.3;
    else if (is_hotjava3up) is_js = 1.4;
    else if (is_nav6 || is_gecko) is_js = 1.5;
    // NOTE: In the future, update this code when newer versions of JS
    // are released. For now, we try to provide some upward compatibility
    // so that future versions of Nav and IE will show they are at
    // *least* JS 1.x capable. Always check for JS version compatibility
    // with > or >=.
    else if (is_nav6up) is_js = 1.5;
    // NOTE: ie5up on mac is 1.4
    else if (is_ie5up) is_js = 1.3

    // HACK: no idea for other browsers; always check for JS version with > or >=
    else is_js = 0.0;

    // *** PLATFORM ***
    var is_win   = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
    // NOTE: On Opera 3.0, the userAgent string includes "Windows 95/NT4" on all
    //        Win32, so you can't distinguish between Win95 and WinNT.
    var is_win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1));

    // is this a 16 bit compiled version?
    var is_win16 = ((agt.indexOf("win16")!=-1) || 
               (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) || 
               (agt.indexOf("windows 16-bit")!=-1) );  

    var is_win31 = ((agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) ||
                    (agt.indexOf("windows 16-bit")!=-1));

    var is_winme = ((agt.indexOf("win 9x 4.90")!=-1));
    var is_win2k = ((agt.indexOf("windows nt 5.0")!=-1));

    // NOTE: Reliable detection of Win98 may not be possible. It appears that:
    //       - On Nav 4.x and before you'll get plain "Windows" in userAgent.
    //       - On Mercury client, the 32-bit version will return "Win98", but
    //         the 16-bit version running on Win98 will still return "Win95".
    var is_win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1));
    var is_winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1));
    var is_win32 = (is_win95 || is_winnt || is_win98 || 
                    ((is_major >= 4) && (navigator.platform == "Win32")) ||
                    (agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1));

    var is_os2   = ((agt.indexOf("os/2")!=-1) || 
                    (navigator.appVersion.indexOf("OS/2")!=-1) ||   
                    (agt.indexOf("ibm-webexplorer")!=-1));

    var is_mac    = (agt.indexOf("mac")!=-1);
    // hack ie5 js version for mac
    if (is_mac && is_ie5up) is_js = 1.4;
    var is_mac68k = (is_mac && ((agt.indexOf("68k")!=-1) || 
                               (agt.indexOf("68000")!=-1)));
    var is_macppc = (is_mac && ((agt.indexOf("ppc")!=-1) || 
                                (agt.indexOf("powerpc")!=-1)));

    var is_sun   = (agt.indexOf("sunos")!=-1);
    var is_sun4  = (agt.indexOf("sunos 4")!=-1);
    var is_sun5  = (agt.indexOf("sunos 5")!=-1);
    var is_suni86= (is_sun && (agt.indexOf("i86")!=-1));
    var is_irix  = (agt.indexOf("irix") !=-1);    // SGI
    var is_irix5 = (agt.indexOf("irix 5") !=-1);
    var is_irix6 = ((agt.indexOf("irix 6") !=-1) || (agt.indexOf("irix6") !=-1));
    var is_hpux  = (agt.indexOf("hp-ux")!=-1);
    var is_hpux9 = (is_hpux && (agt.indexOf("09.")!=-1));
    var is_hpux10= (is_hpux && (agt.indexOf("10.")!=-1));
    var is_aix   = (agt.indexOf("aix") !=-1);      // IBM
    var is_aix1  = (agt.indexOf("aix 1") !=-1);    
    var is_aix2  = (agt.indexOf("aix 2") !=-1);    
    var is_aix3  = (agt.indexOf("aix 3") !=-1);    
    var is_aix4  = (agt.indexOf("aix 4") !=-1);    
    var is_linux = (agt.indexOf("inux")!=-1);
    var is_sco   = (agt.indexOf("sco")!=-1) || (agt.indexOf("unix_sv")!=-1);
    var is_unixware = (agt.indexOf("unix_system_v")!=-1); 
    var is_mpras    = (agt.indexOf("ncr")!=-1); 
    var is_reliant  = (agt.indexOf("reliantunix")!=-1);
    var is_dec   = ((agt.indexOf("dec")!=-1) || (agt.indexOf("osf1")!=-1) || 
           (agt.indexOf("dec_alpha")!=-1) || (agt.indexOf("alphaserver")!=-1) || 
           (agt.indexOf("ultrix")!=-1) || (agt.indexOf("alphastation")!=-1)); 
    var is_sinix = (agt.indexOf("sinix")!=-1);
    var is_freebsd = (agt.indexOf("freebsd")!=-1);
    var is_bsd = (agt.indexOf("bsd")!=-1);
    var is_unix  = ((agt.indexOf("x11")!=-1) || is_sun || is_irix || is_hpux || 
                 is_sco ||is_unixware || is_mpras || is_reliant || 
                 is_dec || is_sinix || is_aix || is_linux || is_bsd || is_freebsd);

    var is_vms   = ((agt.indexOf("vax")!=-1) || (agt.indexOf("openvms")!=-1));

    

    	var buffer_row_color;

		
	//function that changes row colour on mouseover
	function Change(row){		
		buffer_row_color = row.bgColor;
		row.bgColor = "#C0C0C0";		
	}
	
	function UnChange(row){
		row.bgColor = buffer_row_color;		
	}
	//end row colour function
		
	
	//function that initiates search on the top bar...
	function doMainSearch(){    		  						
   		var theSearchVal = document.getElementsByTagName('input').item('searchtext').value;
   		var theSearchCat = document.getElementById('searchCat').selectedIndex; 
   		if (theSearchVal!='') window.location.replace('/search/default.asp?q=' + escape(theSearchVal) + '&c=' + theSearchCat);
   	}
	//end search function
  		
	
	//function that updates the banner image
   	function UpdateTopImageBar(imgSrc){   			   						
  		document.getElementById('topImageBar').style.background = 'url(' + imgSrc + ') no-repeat left top';		
   	}
	//end function
	

	//function that returns the 'context' text, as defined in the Communications Unit's web-development guidelines...
	function get_context_text(){
			var tbl_collection =  document.getElementsByTagName("TABLE");
			var tbl_framework = tbl_collection[1];
			var cleanHTMLStr = '';
			
			try{
				cleanHTMLStr = tbl_framework.childNodes[0].childNodes[2].childNodes[2].innerHTML;
			}
			catch(e){
				try{
					cleanHTMLStr = tbl_framework.childNodes[0].childNodes[2].childNodes[1].innerHTML;					
				}
				catch(e){}
			}				
			
			//the result HTML
			return  cleanHTMLStr;
		
		
	}

	//end 'context' text function
	
	//function that executes the print process...		
	function _PrinterFriendly(){
		try{
			var p_content = get_context_text();			
			if (p_content.length==0) return;
		
			var listener_doc = document.getElementById('frm_listener');				
			listener_doc.target = '_blank';		
			listener_doc.action = '/framework/print.asp';
			listener_doc.innerHTML = '<textarea name="p_content" style="display:none">' + p_content + '</textarea>';
			listener_doc.submit();
			listener_doc.innerHTML = '';
		}
		catch(e){alert('An unexpected error occured: \n\n' + e.description + '\n\nPlease contact the Web Administrator')}	
	}	
	//end print function
	
	
	//function that executes the email process
	function _email_page(){
		try{	
			var m_link = 'A web page that may be of interest to you can be found at: ' + escape(window.location.href);			
			window.open('mailto:?subject=' + window.document.title + '&body=' + m_link);
		}
		catch(e){alert('An unexpected error occured: \n\n' + e.description + '\n\nPlease contact the Web Administrator')}		
	}	
	//end mail function

	function createXMLHTTPObj() {
		var xmlhttp;
		try {
			xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
		 } catch (e) 
			{			
			try {
				xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e)
				{
					if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
						xmlhttp = new XMLHttpRequest();
					}	
				 }
			}	
						
		return 	xmlhttp;	
	}	

	function resolveBreadCrumb(bcName){
   			try{
   				var bcBuffer, fldName, fldResolveName;
   				var isBC_Default = new Boolean();
   				isBC_Default = false;
   				bcBuffer = unescape(bcName);
   				
   				for (var i = 0; i < BREADCRUMBS_DEF.length; i++){					
					fldName = BREADCRUMBS_DEF[i].physicalName;
					fldResolveName = BREADCRUMBS_DEF[i].breadCName;
					if (bcBuffer.toLowerCase() == fldName.toLowerCase()){
						bcBuffer = fldResolveName;
						isBC_Default = true;
						break;
					}
							
				}   		
				if (!isBC_Default){					
					bcBuffer = capitalizeLetters(bcBuffer)
				}						
   				return bcBuffer;
   			}
   			catch(e) {
   				return bcName;
   			}  		
   		}  		
   		
		function drawBreadCrumbs(){
			sURL = new String;
			bits = new Object;
			var x = 0;
			var stop = 0;
			var output = "<a href=\"/\">Home</a>";
			var docTitle;
			
			sURL = location.href;
			sURL = sURL.slice(8,sURL.length);
			chunkStart = sURL.indexOf("/");
			sURL = sURL.slice(chunkStart+1, sURL.length)
			
			while (!stop) {
				chunkStart = sURL.indexOf("/");
				if (chunkStart != -1){
					bits[x] = sURL.slice(0,chunkStart)
					sURL = sURL.slice(chunkStart+1,sURL.length);
				}
				else {
					stop = 1;
				}
				x++;
			}
			
			for (var i in bits) {
				output += "&nbsp;>&nbsp;<a href=\"";
				for(y=1;y<x-i;y++){
				output += "../";
						}
				output += bits[i] + "/\">" + resolveBreadCrumb(bits[i]) + "</a>";
			}
			docTitle = document.title;
			
			//return empty document description if the title is the name of the org.
			if (docTitle.toLowerCase() == 'world agroforestry centre') docTitle = '';
			else docTitle = '&nbsp;>&nbsp;' + docTitle;
			document.getElementById('topNavBar').innerHTML =  output + docTitle;
			
		}
		
		function capitalizeLetters(passedString) { 
		
			try{
				var tmpStr, tmpChar, preString, postString, strlen; 
				tmpStr = passedString.toLowerCase(); 				
				stringLen = tmpStr.length; 
				if (stringLen > 0) 
				{ 
				  for (i = 0; i < stringLen; i++) 
				  { 
				    if (i == 0) 
				    { 
				      tmpChar = tmpStr.substring(0,1).toUpperCase(); 
				      postString = tmpStr.substring(1,stringLen); 
				      tmpStr = tmpChar + postString; 				     
				    } 
				    else 
				    { 
				      tmpChar = tmpStr.substring(i,i+1); 
				      if (tmpChar == " " && i < (stringLen-1)) 
				      { 
				      tmpChar = tmpStr.substring(i+1,i+2).toUpperCase(); 
				      preString = tmpStr.substring(0,i+1); 
				      postString = tmpStr.substring(i+2,stringLen); 
				      tmpStr = preString + tmpChar + postString; 
				      } 
				    } 
				  } 
				} 
			}
			catch(e){ tmpStr = passedString }
			
			return tmpStr; 
		}