var ajax_param = "NULL";
    var lastscrollpos = 0;
    function set_ajax_param(param)
    {
    ajax_param = param;
    }
                var sajax_debug_mode = false;
                var sajax_request_type = "GET";
                var sajax_target_id = "";
                var sajax_failure_redirect = "";
                
                function sajax_debug(text) {
                        if (sajax_debug_mode)
                                alert(text);
                }
                
                function sajax_init_object() {
                        sajax_debug("sajax_init_object() called..")
                        
                        var A;
                        
                        var msxmlhttp = new Array(
                                'Msxml2.XMLHTTP.6.0',
                                'Msxml2.XMLHTTP.3.0',
                                'Msxml2.XMLHTTP',
                                'Microsoft.XMLHTTP');
                        for (var i = 0; i < msxmlhttp.length; i++) {
                                try {
                                        A = new ActiveXObject(msxmlhttp[i]);
                                } catch (e) {
                                        A = null;
                                }
                        }
                        
                        if(!A && typeof XMLHttpRequest != "undefined")
                                A = new XMLHttpRequest();
                        if (!A)
                                sajax_debug("Could not create connection object.");
                        return A;
                }
                
                var sajax_requests = new Array();
                
                function sajax_cancel() {
                        for (var i = 0; i < sajax_requests.length; i++) 
                                sajax_requests[i].abort();
                }
                
                function sajax_do_call(func_name, args) {
                        var i, x, n;
                        var uri;
                        var post_data;
                        var target_id;
                        
                        sajax_debug("in sajax_do_call().." + sajax_request_type + "/" + sajax_target_id);
                        target_id = sajax_target_id;
                        if (typeof(sajax_request_type) == "undefined" || sajax_request_type == "") 
                                sajax_request_type = "GET";
                        
                        uri = "";
                        if (sajax_request_type == "GET") {
                        
                                if (uri.indexOf("?") == -1) 
                                        uri += "?rs=" + escape(func_name);
                                else
                                        uri += "&rs=" + escape(func_name);
                                uri += "&rst=" + escape(sajax_target_id);
                                uri += "&rsrnd=" + new Date().getTime();
                                
                                for (i = 0; i < args.length-1; i++) 
                                        uri += "&rsargs[]=" + escape(args[i]);

                                post_data = null;
                        } 
                        else if (sajax_request_type == "POST") {
                                post_data = "rs=" + escape(func_name);
                                post_data += "&rst=" + escape(sajax_target_id);
                                post_data += "&rsrnd=" + new Date().getTime();
                                
                                for (i = 0; i < args.length-1; i++) 
                                        post_data = post_data + "&rsargs[]=" + escape(args[i]);
                        }
                        else {
                                alert("Illegal request type: " + sajax_request_type);
                        }
                        
                        x = sajax_init_object();
                        if (x == null) {
                                if (sajax_failure_redirect != "") {
                                        location.href = sajax_failure_redirect;
                                        return false;
                                } else {
                                        sajax_debug("NULL sajax object for user agent:\n" + navigator.userAgent);
                                        return false;
                                }
                        } else {
                        		// make debugging easier
                        		window.lastURI = uri;
                        		
                                x.open(sajax_request_type, uri, true);
                                // window.open(uri);
                                
                                sajax_requests[sajax_requests.length] = x;
                                
                                if (sajax_request_type == "POST") {
                                        x.setRequestHeader("Method", "POST " + uri + " HTTP/1.1");
                                        x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
                                }
                        
                                x.onreadystatechange = function() {
                                        if (x.readyState != 4) 
                                                return;

                                        sajax_debug("received " + x.responseText);
                                
                                        var status;
                                        var data;
                                        var txt = x.responseText.replace(/^\s*|\s*$/g,"");
                                        status = txt.charAt(0);
                                        data = txt.substring(2);

                                        if (status == "") {
                                                // let's just assume this is a pre-response bailout and let it slide for now
                                        } else if (status == "-") 
                                                alert("Error: " + data);
                                        else {
                                                if (target_id != "") 
                                                        document.getElementById(target_id).innerHTML = eval(data);
                                                else {
                                                        try {
                                                                var callback;
                                                                var extra_data = false;
                                                                if (typeof args[args.length-1] == "object") {
                                                                        callback = args[args.length-1].callback;
                                                                        extra_data = args[args.length-1].extra_data;
                                                                } else {
                                                                        callback = args[args.length-1];
                                                                }
                                                                callback(eval(data), extra_data);
                                                        } catch (e) {
                                                                sajax_debug("Caught error " + e + ": Could not eval " + data );
                                                        }
                                                }
                                        }
                                }
                        }
                        
                        sajax_debug(func_name + " uri = " + uri + "/post = " + post_data);
                        x.send(post_data);
                        sajax_debug(func_name + " waiting..");
                        delete x;
                        return true;
                }
                
                                
    // wrapper for show_custom              
    function x_show_custom() 
    {
        sajax_do_call("show_custom", x_show_custom.arguments);
    }
                
    function show_me(data) 
    {
        resultvalue = data[2];
        if (resultvalue == 'scrollbox')
        {
            scrollOBJ = document.getElementById(data[1]);
            var scrollvalue = data[3]-358+38;
            if (scrollvalue<0) 
            {
                scrollvalue=0;
            }
            if (lastscrollpos < scrollvalue)
            {
                scrollOBJ.scrollTop=scrollvalue;
            }
            else
            {
                scrollOBJ.scrollTop=lastscrollpos;
            }
        }
        else
        {
            if (data[0] == 'uppertreeplaceholder')
            {
                scrollOBJ   = document.getElementById('speciality_container');
                if (scrollOBJ) 
                {
                    lastscrollpos = scrollOBJ.scrollTop;
                }
            }
            document.getElementById(data[0]).innerHTML = data[1];
            if (data[2] != '')
            {
                runcodes = data[2].split('-');
                ProcessAjax(runcodes[0], runcodes[1], runcodes[2]);
            }
            if (data[3] != '')
            {
                runcodes = data[3].split('-');
                ProcessAjax(runcodes[0], runcodes[1], runcodes[2]);
            }
            if (data[4] != '')
            {
                runcodes = data[4].split('-');
                ProcessAjax(runcodes[0], runcodes[1], runcodes[2]);
            }
        }
    }
    
    function ProcessAjax(divname, action, data) 
    {
        divOBJ = document.getElementById( divname );
        
        /* ssc */
        trackAjaxIfDefined( action );
        
        divOBJ.innerHTML = "<center style='padding-top:15px;padding-bottom:15px;'><img src='/pix/indicator.gif' align='absmiddle' border='0' style='float:none'>&nbsp;&nbsp;" + "&nbsp;" + loading_infotext + divOBJ.innerHTML+'</center>';
        x_show_custom(divname,action, data, show_me);
    }
    
    /* ssc */
    // checks the automatically generated __ajaxTracking array whether this call should be tracked
    function trackAjaxIfDefined( action ) {
    
    	try { var __ajaxTracking = __ajaxTracking; }
    	catch (e) { var __ajaxTracking; }
    	
    	if ( __ajaxTracking != undefined ) {
    	
    		for ( var callName in __ajaxTracking ) {
    			
    			if ( action == callName ) {
    				
    				// phone home to index tools
    				var tracking_object = createITT();
								
					tracking_object.DOCUMENTNAME  =  __ajaxTracking[callName].documentName;
					tracking_object.DOCUMENTGROUP =  __ajaxTracking[callName].documentGroup;
					tracking_object.ACTION 		  =  __ajaxTracking[callName].action;
					tracking_object.MEMBERID	  =  __ajaxTrackingUserId;
													
					tracking_object.submit();    				
    			}
    			
    		}
    	
    	}
    }