/*********
* Javascript for file upload demo
* Copyright (C) Tomas Larsson 2006
* http://tomas.epineer.se/

* Licence:
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
* 
* Software distributed under this License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*/
var uploads_in_progress = 0;
var sids = {};

function beginUpload(ul,sid) {		
	window.location.href = "#wrapper";
	ul.form.submit();
	sids[ul.name] = sid;
	uploads_in_progress = uploads_in_progress + 1;
	var pb = $(ul.name + "_progress");
	center = pb.parentNode;
	wrap = center.parentNode;
	//Effect.Appear(wrap.parentNode, { duration: 1.0, transition: Effect.Transitions.linear, from: 0.0, to: 0.6 });
	Element.show(document.getElementById('fader'));
	Element.show(document.getElementById('progresswrapper'));
	//Effect.Opacity('shade', { duration: 1.0, from: 1.0, to: 0.3 });
	new Ajax.PeriodicalUpdater({},'/inc/fileprogress.php',{'decay': 2,'frequency' : 0.5,'method': 'post','parameters': 'sid=' + sid,'onSuccess' : function(request){updateProgress(pb,request)},'onFailure':function(request){updateFailure(pb,request)}})
}

function updateProgress(pb,req) {
	var percent = parseInt(req.responseText);
	if(!percent) percent = 0;
	pb.style.width = percent + "%";
	document.getElementById("progresstext").innerHTML="Die Datei wird hochgeladen. "+percent+"% abgeschlossen";
//	textbox = document.getElementById("progresstext");
//	textbox.innerText='Upload zu '+percent'+% abgeschlossen';
	if(percent >= 100) {
		var inp_id = pb.id.replace("_progress","");
		if(sids[inp_id]) {
			uploads_in_progress = uploads_in_progress - 1;
			var inp = $(inp_id);
			if(inp) {
				inp.value = sids[inp_id];
			}
		}
		center = pb.parentNode;
		wrap = center.parentNode;
		//Effect.Fade(wrap.parentNode, { duration: 1.0, transition: Effect.Transitions.linear, from: 0.6, to: 0.0 });
		Element.hide(document.getElementById('fader'));
		Element.hide(document.getElementById('progresswrapper'));
		sids[inp_id] = false;
		document.forms["step3"].submit();
	}
}

function updateFailure(pb,req) {
	var mes = req.responseText;
	pb.style.width=0;
	alert(mes);
	uploads_in_progress = uploads_in_progress - 1;
}

function submitUpload(frm) {
	if(uploads_in_progress > 0) {
		alert("Bitte warten Sie, bis der Upload abgeschlossen ist!");
	} else {
		frm.submit();
	}
}