try{if(!use_charset){var use_charset='';}}catch(e){}
function ajax_request(){this.isIE=false;this.allow_use=use_enhanced_js?true:false;this.xmlhandler=null;this.error_string='';this.nocache=true;this.do_request_functon=function(){}
this.loading_fired=0;this.centerdiv=null;}
ajax_request.prototype.xml_init=function(){try{this.xmlhandler=new XMLHttpRequest();this.ie=false;this.allow_use=true;return true;}catch(e){try{this.xmlhandler=new ActiveXObject('Microsoft.XMLHTTP');this.ie=true;this.allow_use=true;return true;}catch(e){this.ie=true;this.allow_use=false;return false;}}}
ajax_request.prototype.process=function(url,type,post){type=type=="POST"?"POST":"GET";if(this.nocache==true&&type=='GET'){url=this.nocache_url(url);}
if(!this.xmlhandler){this.xml_init();}
if(!this.readystate_not_ready()){this.xmlhandler.open(type,url,true);if(type=="GET"){this.xmlhandler.send(null);}else{if(typeof(this.xmlhandler.setRequestHeader)!="undefined"){this.xmlhandler.setRequestHeader('Content-Type','application/x-www-form-urlencoded; charset='+use_charset);}
this.xmlhandler.send(post);}
if(this.xmlhandler.readyState==4&&this.xmlhandler.status==200){return true;}}
return false;}
ajax_request.prototype.get_element_text_ns=function(prefix,local,parentElem,index){var result="";if(prefix&&this.isIE){result=parentElem.getElementsByTagName(prefix+":"+local)[index];}else{result=parentElem.getElementsByTagName(local)[index];}
if(result){if(result.childNodes.length>1){return result.childNodes[1].nodeValue;}else{return result.firstChild.nodeValue;}}else{return"n/a";}}
ajax_request.prototype.nocache_url=function(url){var sep=(-1<url.indexOf("?"))?"&":"?";var mydate=new Date();var newurl=url+sep+"__="+mydate.getTime();return newurl;}
ajax_request.prototype.format_for_post=function(arrayfields){var str='';try{for(var i in arrayfields){str+=i+'='+this.encodeurl(arrayfields[i])+'&';}}catch(e){}
return str;}
ajax_request.prototype.encodeurl=function(url){url=url.toString();var regcheck=url.match(/[\x90-\xFF]/g);if(regcheck){for(var i=0;i<i.length;i++){url=url.replace(regcheck[i],'%u00'+(regcheck[i].charCodeAt(0)&0xFF).toString(16).toUpperCase());}}
return escape(url).replace(/\+/g,"%2B");}
ajax_request.prototype.readystate_not_ready=function(){return(this.xmlhandler.readyState&&(this.xmlhandler.readyState<4));}
ajax_request.prototype.readystate_ready_and_ok=function(){return(this.xmlhandler.readyState==4&&this.xmlhandler.status==200)?true:false;}
ajax_request.prototype.onreadystatechange=function(event){if(!this.xmlhandler){this.xml_init();}
if(typeof(event)=='function'){this.xmlhandler.onreadystatechange=event;}}
ajax_request.prototype.show_loading=function(message){if(!this.loading_fired){this.loading_fired=1;if(message){document.getElementById('loading-layer-text').innerHTML=message;}
this.centerdiv=new center_div();this.centerdiv.divname='loading-layer';this.centerdiv.move_div();}
return;}
ajax_request.prototype.hide_loading=function(){try{if(this.centerdiv&&this.centerdiv.divobj){this.centerdiv.hide_div();}}catch(e){}
this.loading_fired=0;return;}
if(use_enhanced_js){use_enhanced_js=ajax_request.prototype.xml_init()?1:0;}