/* * Ajax72 v1 */ /* AJAX72 OBJECT --------------------------------------------------------------------------------------------------------------- */ function Ajax72(){ this.conf={ 'debug':false, 'debugMethod':'div', /* div|window */ 'messageStatusBar':false, 'messageUser':true }; this.method='GET'; this.requestUri=''; this.loaded=false; this.initOk=false; this.debugWindow=null; this.queue=new Array(); this.queueInterval=null; } Ajax72.prototype.debugOpenWindow=function(){ var h='Ajax72 debug window'; h+=''; h+='

Ajax72 debug

'; this.debugWindow=window.open('about:blank','Ajax72-debug'); this.debugWindow.document.write(h); } Ajax72.prototype.debug=function(func,str,clear){ if(this.conf.debug){ var dd=false,dw=false,d=null; if(this.conf.debugMethod=='div') dd=true; else if(this.conf.debugMethod=='window') dd=true; else return(false); var t=str; if(str!=''){ t=''+(new Date()).toString()+'
\n'+func+'
'+str+'
\n'; } if(dw){ var r=3; do{ try{ d=this.debugWindow.document.getElementById('ajax72Debug'); }catch(e){ this.debugOpenWindow(); } }while((!d)&&(r-->0)); if((!d)&&(!this.debugWindow)) this.message('Can\'t open debug window. Please check your browser settings.'); }else if(dd){ d=document.getElementById('ajax72Debug'); } if(!d) return(false); var c=(typeof(clear)!='undefined'); var b=(c)?'':d.innerHTML; var t=str; if(str!=''){ t=''+(new Date()).toString()+'
\n'+func+'
'+str+'
\n'+b; } d.innerHTML=t; } } Ajax72.prototype.htmlentities=function(str){ str=str.replace(/&/g,'&'); str=str.replace(//g,'>'); return(str); } Ajax72.prototype.message=function(str){ this.messageUser(str); this.messageStatusBar(str); } Ajax72.prototype.messageUser=function(str){ if(this.conf.messageUser){ alert('Ajax72:\n'+str); } } Ajax72.prototype.messageStatusBar=function(str){ if(this.conf.messageStatusBar){ window.status=((str!='')?'Ajax72: ':'')+str; } } Ajax72.prototype.call=function(funcName,funcArgs){ if(this.initOk){ var i,s=new Array(); for(i=0;i'+funcName+'('+s.join(', ')+')'); var r=this.createRequestObject(); if(r){ var uri=this.requestUri; var params=''; var postData=null; uri+=(this.requestUri.indexOf('?')==-1)?'?':'&'; params+='ajax72func='+funcName; params+='&ajax72ts='+(new Date()).getTime(); for(i=0;i'+this.method+'URL=
'+uri+'
Params=
'+params+'
'); if(this.method=='GET') uri+=params; r.open(this.method,uri,true); if(this.method=='POST'){ postData=params; try{ r.setRequestHeader('Method','POST '+uri+' HTTP/1.1'); r.setRequestHeader('Content-Type','application/x-www-form-urlencoded'); }catch(e){ this.debug('call','Can\'t create POST request.'); var t='Your browser does not appear to support asynchronous requests using POST.'; this.message(t); return(false); } } r.onreadystatechange=function(){ if(r.readyState!=4) return; if(r.status==200){ ajax72.debug('call','Received:
'+ajax72.htmlentities(r.responseText)+'
'); if(r.responseXML&&r.responseXML.documentElement) ajax72.processResponse(r.responseXML); }else{ ajax72.debug('call','Status: '+r.status); if(r.status==404) ajax72.messageUser('"'+ajax72.requestUri+'" doesn\'t exist.\nRequest status is 404.'); else ajax72.messageUser('An unexpected error occurred.\nRequest status is '+r.status+'.'); } } r.send(postData); this.waitingCursor(true); this.debug('call','Send done.'); this.messageStatusBar('Waiting for data...'); } }else{ if(this.queueInterval==null) this.queueInterval=setInterval('ajax72.processQueue();',50); this.debug('Queue: Add '+funcName+'().'); this.messageStatusBar('Add '+funcName+'() to queue.'); this.queue[this.queue.length]={'func':funcName,'args':funcArgs}; } } Ajax72.prototype.processQueue=function(){ if(this.initOk){ clearInterval(this.queueInterval); this.queueInterval=null; var i,o; for(i in this.queue){ o=this.queue[i]; this.debug('Queue: Delayed launch of '+o.func+'().'); this.messageStatusBar('Launch '+o.func+'() from queue.'); this.call(o.func,o.args); delete o; } } } Ajax72.prototype.processResponse=function(response){ this.debug('processResponse','Processing data...'); this.messageStatusBar('Processing data...'); var xml=response.documentElement; var a,c,o,i,j,n,t,v; var attr=new Array('a','t'); var r=xml.childNodes[0]; for(i=0;i