/**************************************************************************************************
	Predefined Variables
***************************************************************************************************/				
	var http_requests = new Array();
	if (window.XMLHttpRequest) var http_request = new XMLHttpRequest();  else var http_request=false;
	var loading_graphic = "<img src='designer/"+ img_path + "loading_16x16.gif' width='16' height='16' border='0' align='absmiddle'>&nbsp;";
	

/**************************************************************************************************
	AJAX Server Requests
***************************************************************************************************/				
	function build_HttpRequest() {
		if (window.XMLHttpRequest) { // Mozilla, Safari,...
			var request = new XMLHttpRequest();
			if (request.overrideMimeType) { request.overrideMimeType('text/xml');}
		} else if (window.ActiveXObject) { // IE
			try {var request = new ActiveXObject("Msxml2.XMLHTTP");} 
			catch (e) {
				try {var request = new ActiveXObject("Microsoft.XMLHTTP");} catch (e) {}
			}
		}
		if (!request) { alert('Cannot create an XMLHTTP instance');return false;}
		return request;
	}
//** FUNCTION: Make Request to Server passing GET variables
	function makeRequest(url,do_function) {
		http_request = build_HttpRequest();
		var time = new Date();				
		if (url.indexOf('?')>0){ url = url + '&time='+time.getTime(); } else { url = url + '?time='+time.getTime();}
		http_request.onreadystatechange = do_function;
		http_request.open('GET', url, true);
		http_request.send(null);
	}	
/**************************************************************************************************
	Upload Form Functions
***************************************************************************************************/			

//** FUNCTION: Check form file Extensions that pose a Security Issue
	function checkFileExtentions(form){
		if(check_file_extentions == false){ return false; }
		var re = /(\.php)|(\.sh)$/i;   //Change line 126 in uber_uploader.cgi to match
		if(form['filename'].value != ""){
			if(form['filename'].value.match(re)){
				var string = form['filename'].value;
				var num_of_last_slash = string.lastIndexOf("\\");
				if(num_of_last_slash < 1){ num_of_last_slash = string.lastIndexOf("/"); }
				var file_name = string.slice(num_of_last_slash + 1, string.length);
				var file_extention = file_name.slice(file_name.indexOf(".")).toLowerCase(); 
				alert('Sorry, uploading a file with the extention "' + file_extention + '" is not allowed.');
				return true;
			}
		}
		return false;
	}	
//** FUNCTION: Process Queued Uploads
	function upload() {				

		if (uploads.length>0) {
			form = document.getElementById('frmUpload_'+uploads[0]);
			if (form["filename"].value == ""){ 
				alert("Please Choose a file to upload.");
			} else {
				filename =	form["filename"].value; 
				if (filename.lastIndexOf("\\")>0) {
					filename = filename.substring(filename.lastIndexOf("\\")+1,filename.length);
				} else if (filename.lastIndexOf("/")>0) {
					filename = filename.substring(filename.lastIndexOf("/")+1,filename.length);
				} 
				if(checkFileExtentions(form)){ return false; }
				makeRequest("designer/upload_progress.php?sid="+sid+"&filename="+filename,progress);
				form.submit();
				document.getElementById("btn_upload").innerHTML = loading_graphic+" Uploading...";
			}
		}
	}	
//** FUNCTION: Process Response From Ajax Request
	function progress() {
		
		switch (http_request.readyState) {
			case 1 : checkCount++; break;
			case 4 :
				if (http_request.status == 200) {					
					response = http_request.responseText.split('|');
					upload_cell = document.getElementById('upload_'+uploads[0]);
					switch(response[0]) {
						case "wait":
							var output = new Array();
							var ext = response[1].substring(response[1].lastIndexOf(".")+1,response[1].length);
							output.push("<table cellspacing='0' cellpadding='0' border='0' width='98%' style='margin-top:10px;'>");
							output.push("<tr>");						
							output.push("<td class='upload_filename'>"+response[1]+"<\/td>");
							output.push("<\/tr>");
							output.push("<tr><td class='upload_stats'>Waiting for Download to Start ("+checkCount+")<\/td><\/tr>");
							output.push("<\/table>");
							upload_cell.innerHTML = output.join('');
							setTimeout('makeRequest("designer/upload_progress.php?sid='+sid+'",progress);',1000);
							break;
						case "started":
							makeRequest("designer/upload_progress.php?sid="+sid,progress);
							break;
						case "downloading":
							var output = new Array();
							var ext = response[1].substring(response[1].lastIndexOf(".")+1,response[1].length);
							output.push("<table cellspacing='0' cellpadding='0' border='0' width='98%' style='margin-top:10px;'>");
							output.push("<tr>");
							output.push("<td class='upload_filename'>"+response[1]+"<\/td>");
							output.push("<\/tr>");
							output.push("<tr><td><div id='upload_bar'><div style='width:"+response[3]+"%;'>&nbsp;<\/div><\/div><\/td><\/tr>");
							output.push("<tr><td class='upload_stats'>"+response[4]+" of "+response[5]+" ("+response[6]+"/s) " +response[2]+"<\/td><\/tr>");
							output.push("<\/table>");
							upload_cell.innerHTML = output.join('');
							setTimeout('makeRequest("designer/upload_progress.php?sid='+sid+'",progress);',1000);
							
							break;
						case "copying":
							var output = new Array();
							var ext = response[1].substring(response[1].lastIndexOf(".")+1,response[1].length);
							output.push("<table cellspacing='0' cellpadding='0' border='0' width='98%' style='margin-top:10px;'>");
							output.push("<tr>");
							output.push("<td class='upload_filename'>"+response[1]+"<\/td>");
							output.push("<\/tr>");
							output.push("<tr><td class='upload_stats'>Copying file to destination directory<\/td><\/tr>");
							output.push("<\/table>");
							upload_cell.innerHTML = output.join('');
							setTimeout('makeRequest("designer/upload_progress.php?tmp_sid='+tmp_sid+'",progress);',1000);
							break;							
						case "Success":
							uploads.splice(0,1);
							var output = new Array();
							var ext = response[1].substring(response[1].lastIndexOf(".")+1,response[1].length);
							output.push("<table cellspacing='0' cellpadding='0' border='0' width='98%' style='margin-top:10px;'>");
							output.push("<tr>");							
							output.push("<td class='upload_filename'>"+response[1]+"<\/td>");
                            parent.document.getElementById('custom_art').value=response[1];
                            parent.document.getElementById('custom_art_real_name').value=sid+'.tempext';
							output.push("<\/tr>");
							output.push("<tr><td class='upload_stats'>"+response[2]+"<\/td><\/tr>");
							output.push("<\/table>");
							//output.push("<tr><td id='upload_0'><form id='frmUpload_0' target='uploadForm' method='post' enctype='multipart/form-data' action='/cgi-bin/upload.cgi?sid="+sid+">");
							//output.push("<input type='hidden' name='path' value='"+path+"'>");
							//output.push("<input type='file' name='filename' onchange='upload();'> FREE!</form></td></tr>");
							upload_cell.innerHTML = output.join('');
							document.getElementById("btn_upload").innerHTML = '';
							checkCount = 0;
							setTimeout("upload();",1000);
							
							break;
						default:
							alert(http_request.responseText);
						
					}
				} else { alert("There was a problem with the request.("+http_request.responseText+")"); }
				break;
		}
	
	}
//** FUNCTION: Cancel Upload
	function cancelUpload(msg) {				
		alert(msg);
	}