function SWFUpload(settings) {
	try {
		document.execCommand('BackgroundImageCache', false, true);
	} catch (e) {
	}
	this.movieName = "SWFUpload_" + SWFUpload.movieCount++;
	this.queueLength = 0;
	this.init(settings);

 //this.loadFlash();
 var thisSwfu = this;
window.setTimeout(function() { thisSwfu.loadFlash(); }, 1);
 
	if (this.debug)
		this.debugSettings();
}
SWFUpload.movieCount = 0;
SWFUpload.handleErrors = function (errcode, file, msg) {
	switch (errcode) {
		case -10 :
			alert("Error Code: HTTP Error, File name: " + file.name + ", Message: " + msg);
			break;
		case -20 :
			alert("Error Code: No upload script, File name: " + file.name + ", Message: " + msg);
			break;
		case -30 :
			alert("Error Code: IO Error, File name: " + file.name + ", Message: " + msg);
			break;
		case -40 :
			alert("Error Code: Security Error, File name: " + file.name + ", Message: " + msg);
			break;
		case -50 :
			alert("Error Code: Filesize exceeds limit, File name: " + file.name + ", File size: " + file.size + ", Message: " + msg);
			break;
	}
};
SWFUpload.prototype.init = function (settings) {
	this.settings =[];
	this.addSetting("debug", settings["debug"], false);
	this.addSetting("target", settings["target"], "");
	this.addSetting("create_ui", settings["create_ui"], false);
	this.addSetting("browse_link_class", settings["browse_link_class"], "SWFBrowseLink");
	this.addSetting("upload_link_class", settings["upload_link_class"], "SWFUploadLink");
	this.addSetting("browse_link_innerhtml", settings["browse_link_innerhtml"], "<span>Browse...</span>");
	this.addSetting("upload_link_innerhtml", settings["upload_link_innerhtml"], "<span>Upload</span>");
	this.addSetting("flash_loaded_callback", settings["flash_loaded_callback"], "SWFUpload.flashLoaded");
	this.addSetting("upload_file_queued_callback", settings["upload_file_queued_callback"], "");
	this.addSetting("upload_file_start_callback", settings["upload_file_start_callback"], "");
	this.addSetting("upload_file_complete_callback", settings["upload_file_complete_callback"], "");
	this.addSetting("upload_queue_complete_callback", settings["upload_queue_complete_callback"], "");
	this.addSetting("upload_progress_callback", settings["upload_progress_callback"], "");
	this.addSetting("upload_dialog_cancel_callback", settings["upload_dialog_cancel_callback"], "");
	this.addSetting("upload_file_error_callback", settings["upload_file_error_callback"], "SWFUpload.handleErrors");
	this.addSetting("upload_file_cancel_callback", settings["upload_file_cancel_callback"], "");
	this.addSetting("upload_queue_cancel_callback", settings["upload_queue_cancel_callback"], "");
	this.addSetting("upload_script", escape(settings["upload_script"], ""));
	this.addSetting("auto_upload", settings["auto_upload"], false);
	this.addSetting("allowed_filetypes", settings["allowed_filetypes"], "*.*");
	this.addSetting("allowed_filetypes_description", settings["allowed_filetypes_description"], "All files");
	this.addSetting("allowed_filesize", settings["allowed_filesize"], 1024);
	this.addSetting("flash_path", settings["flash_path"], "jscripts/SWFUpload/SWFUpload.swf");
	this.addSetting("flash_target", settings["flash_target"], "");
	this.addSetting("flash_width", settings["flash_width"], "1px");
	this.addSetting("flash_height", settings["flash_height"], "1px");
	this.addSetting("flash_color", settings["flash_color"], "#000000");
	this.addSetting("file_count", settings["file_count"], 0);
	this.addSetting("max_file_count", settings["max_file_count"], '');
	this.debug = this.getSetting("debug");
};
SWFUpload.prototype.loadFlash = function () {
	var html = "";
	var sb = new stringBuilder();
	if (navigator.plugins && navigator.mimeTypes && navigator.mimeTypes.length) {
		sb.append('<embed type="application/x-shockwave-flash" src="' +this.getSetting("flash_path") + '" width="' +this.getSetting("flash_width") + '" height="' +this.getSetting("flash_height") + '"');
		sb.append(' id="' +this.movieName + '" name="' +this.movieName + '" ');
		sb.append('bgcolor="' +this.getSetting["flash_color"] + '" quality="high" wmode="transparent" menu="false" flashvars="');
		sb.append(this._getFlashVars());
		sb.append('" />');
	} else {
		sb.append('<object id="' +this.movieName + '" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="' +this.getSetting("flash_width") + '" height="' +this.getSetting("flash_height") + '">');
		sb.append('<param name="movie" value="' +this.getSetting("flash_path") + '" />');
		sb.append('<param name="bgcolor" value="#000000" />');
		sb.append('<param name="quality" value="high" />');
		sb.append('<param name="wmode" value="transparent" />');
		sb.append('<param name="menu" value="false" />');
		sb.append('<param name="flashvars" value="' +this._getFlashVars() + '" />');
		sb.append('</object>');
	}
	var container = document.createElement("div");
	container.style.width = "0px";
	container.style.height = "0px";
	container.style.position = "absolute";
	container.style.top = "0px";
	container.style.left = "0px";
	var target_element = document.getElementsByTagName("body")[0];
	if (typeof(target_element) == "undefined" || target_element == null)
		return false;
	var html = sb.toString();
	target_element.appendChild(container);
	container.innerHTML = html;
	this.movieElement = document.getElementById(this.movieName);

};
SWFUpload.prototype._getFlashVars = function () {
	var sb = new stringBuilder();
	sb.append("uploadScript=" + this.getSetting("upload_script"));
	sb.append("&allowedFiletypesDescription=" + this.getSetting("allowed_filetypes_description"));
	sb.append("&flashLoadedCallback=" + this.getSetting("flash_loaded_callback"));
	sb.append("&uploadFileQueuedCallback=" + this.getSetting("upload_file_queued_callback"));
	sb.append("&uploadFileStartCallback=" + this.getSetting("upload_file_start_callback"));
	sb.append("&uploadProgressCallback=" + this.getSetting("upload_progress_callback"));
	sb.append("&uploadFileCompleteCallback=" + this.getSetting("upload_file_complete_callback"));
	sb.append("&uploadQueueCompleteCallback=" + this.getSetting("upload_queue_complete_callback"));
	sb.append("&uploadDialogCancelCallback=" + this.getSetting("upload_dialog_cancel_callback"));
	sb.append("&uploadFileErrorCallback=" + this.getSetting("upload_file_error_callback"));
	sb.append("&uploadFileCancelCallback=" + this.getSetting("upload_file_cancel_callback"));
	sb.append("&uploadQueueCompleteCallback=" + this.getSetting("upload_queue_complete_callback"));
	sb.append("&autoUpload=" + this.getSetting("auto_upload"));
	sb.append("&allowedFiletypes=" + this.getSetting("allowed_filetypes"));
	sb.append("&maximumFilesize=" + this.getSetting("allowed_filesize"));
	return sb.toString();
}
SWFUpload.prototype.flashLoaded = function (bool) {
	this.loadUI();
	if (this.debug)
		SWFUpload.debug("Flash called home and is ready.");
};
SWFUpload.prototype.loadUI = function () {
	if (this.getSetting("target") != "" && this.getSetting("target") != "fileinputs") {
		var instance = this;
		var target = document.getElementById(this.getSetting("target"));
		var browselink = document.createElement("a");
		browselink.className = this.getSetting("browse_link_class");
		browselink.id = this.movieName + "BrowseBtn";
		browselink.href = "javascript:void(0);";
		browselink.onclick = function () {
			instance.browse();
			return false;
		}
		browselink.innerHTML = this.getSetting("browse_link_innerhtml");
		target.innerHTML = "";
		target.appendChild(browselink);
		if (this.getSetting("auto_upload") == false) {
			var uploadlink = document.createElement("a");
			uploadlink.className = this.getSetting("upload_link_class");
			uploadlink.id = this.movieName + "UploadBtn";
			uploadlink.href = "#";
			uploadlink.onclick = function () {
				instance.upload();
				return false;
			}
			uploadlink.innerHTML = this.getSetting("upload_link_innerhtml");
			target.appendChild(uploadlink);
		}
		
		if(this.getSetting("file_count") >= this.getSetting("max_file_count")) document.getElementById(this.movieName + "BrowseBtn").style.visibility = "collapse";
	}
};
SWFUpload.debug = function (value) {
	if (window.console)
		console.log(value);
	else
		alert(value);
}
SWFUpload.prototype.addSetting = function (name, value, default_value) {
	return this.settings[name] = (typeof(value) == "undefined" || value == null) ? default_value : value;
};
SWFUpload.prototype.getSetting = function (name) {
	return (typeof(this.settings[name]) == "undefined") ? null : this.settings[name];
};
SWFUpload.prototype.browse = function () {
	this.movieElement.browse();
};
SWFUpload.prototype.upload = function () {
	this.movieElement.upload();
}
SWFUpload.prototype.cancelFile = function (file_id) {
	this.movieElement.cancelFile(file_id);
};
SWFUpload.prototype.cancelQueue = function () {
	this.movieElement.cancelQueue();
};
SWFUpload.prototype.debugSettings = function () {
	var sb = new stringBuilder();
	sb.append("----- DEBUG SETTINGS START ----\n");
	sb.append("ID: " + this.movieElement.id + "\n");
	for (var key in this.settings)
		sb.append(key + ": " + this.settings[key] + "\n");
	sb.append("----- DEBUG SETTINGS END ----\n");
	sb.append("\n");
	var res = sb.toString();
	SWFUpload.debug(res);
};
function stringBuilder(join) {
	this._strings = new Array;
	this._join = (typeof join == "undefined") ? "" : join;
	stringBuilder.prototype.append = function (str) {
		this._strings.push(str);
	};
	stringBuilder.prototype.toString = function () {
		return this._strings.join(this._join);
	};
};