function createAjaxObj(){
	var httprequest=false
	if (window.XMLHttpRequest){ // if Mozilla, firefox
		httprequest=new XMLHttpRequest()
	if (httprequest.overrideMimeType)
		httprequest.overrideMimeType('text/xml')
	}
	else if (window.ActiveXObject) { // if IE
		try {
			httprequest=new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e){
			try {
				httprequest=new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){}
		}
	}
	return httprequest
}

var ajaxpack=new Object()
ajaxpack.basedomain="http://"+window.location.hostname
ajaxpack.ajaxobj=createAjaxObj()
ajaxpack.filetype="txt"
ajaxpack.addrandomnumber=1 

ajaxpack.getAjaxRequest=function(url, parameters, callbackfunc, filetype) {
	ajaxpack.ajaxobj=createAjaxObj() 
	if (ajaxpack.addrandomnumber==1) 
		var parameters=parameters+"&ajaxcachebust="+Math.random()
	if (this.ajaxobj){
		this.filetype=filetype
		this.ajaxobj.onreadystatechange=callbackfunc
		this.ajaxobj.open('GET', url+"?"+parameters, true)
		this.ajaxobj.send(null)
	}
}

ajaxpack.postAjaxRequest=function(url, parameters, callbackfunc, filetype) {
	ajaxpack.ajaxobj=createAjaxObj() 
	if (this.ajaxobj){
		this.filetype=filetype
		this.ajaxobj.onreadystatechange = callbackfunc;
		this.ajaxobj.open('POST', url, true);
		this.ajaxobj.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		this.ajaxobj.setRequestHeader("Content-length", parameters.length);
		this.ajaxobj.setRequestHeader("Connection", "close");
		this.ajaxobj.send(parameters);
	}
}