jQuery.extend({

    createUploadIframe: function(id, uri)
	{
			//create frame
            var frameId = 'jUploadFrame' + id;
            
            if(window.ActiveXObject) {
                var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');
                if(typeof uri== 'boolean'){
                    io.src = 'javascript:false';
                }
                else if(typeof uri== 'string'){
                    io.src = uri;
                }
            }
            else {
                var io = document.createElement('iframe');
                io.id = frameId;
                io.name = frameId;
            }
            io.style.position = 'absolute';
            io.style.top = '-1000px';
            io.style.left = '-1000px';

            document.body.appendChild(io);

            return io			
    },
    createUploadForm: function(id, fileElementId, targetFolder,targetPrefix)
	{
		//create form	
		var formId = 'jUploadForm' + id;
		var fileId = 'jUploadFile' + id;
		var form = jQuery('<form  action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');	
		var oldElement = jQuery('#' + fileElementId);
		var newElement = jQuery(oldElement).clone();
		jQuery(oldElement).attr('id', fileId);
		jQuery(oldElement).before(newElement);
		jQuery(oldElement).appendTo(form);
		
		//set attributes
		jQuery(form).css('position', 'absolute');
		jQuery(form).css('top', '-1200px');
		jQuery(form).css('left', '-1200px');
		jQuery(form).append('<input name="tgtfolder" type="hidden" value="'+targetFolder+'"');
		jQuery(form).append('<input name="tgtprefix" type="hidden" value="'+targetFolder+'"');
		jQuery(form).appendTo('body');		
		return form;
    },

    ajaxFileUpload: function(s) {
        // TODO introduce global settings, allowing the client to modify them for all requests, not only timeout		
        s = jQuery.extend({}, jQuery.ajaxSettings, s);
        var id = new Date().getTime()        
		var form = jQuery.createUploadForm(id, s.fileElementId,s.targetFolder,s.targetPrefix);
		var io = jQuery.createUploadIframe(id, s.secureuri);
		var frameId = 'jUploadFrame' + id;
		var formId = 'jUploadForm' + id;		
        // Watch for a new set of requests
        if ( s.global && ! jQuery.active++ )
		{
			jQuery.event.trigger( "ajaxStart" );
		}            
        var requestDone = false;
        // Create the request object
        var xml = {}   
        if ( s.global )
            jQuery.event.trigger("ajaxSend", [xml, s]);
        // Wait for a response to come back
        var uploadCallback = function(isTimeout)
		{			
			var io = document.getElementById(frameId);
            try 
			{				
				if(io.contentWindow)
				{
					 xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;
                	 xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;
					 
				}else if(io.contentDocument)
				{
					 xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;
                	xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;
				}						
            }catch(e)
			{
				jQuery.handleError(s, xml, null, e);
			}
            if ( xml || isTimeout == "timeout") 
			{				
                requestDone = true;
                var status;
                try {
                    status = isTimeout != "timeout" ? "success" : "error";
                    // Make sure that the request was successful or notmodified
                    if ( status != "error" )
					{
                        // process the data (runs the xml through httpData regardless of callback)
                        var data = jQuery.uploadHttpData( xml, s.dataType );    
                        // If a local callback was specified, fire it and pass it the data
                        if ( s.success )
                            s.success( data, status );
    
                        // Fire the global callback
                        if( s.global )
                            jQuery.event.trigger( "ajaxSuccess", [xml, s] );
                    } else
                        jQuery.handleError(s, xml, status);
                } catch(e) 
				{
                    status = "error";
                    jQuery.handleError(s, xml, status, e);
                }

                // The request was completed
                if( s.global )
                    jQuery.event.trigger( "ajaxComplete", [xml, s] );

                // Handle the global AJAX counter
                if ( s.global && ! --jQuery.active )
                    jQuery.event.trigger( "ajaxStop" );

                // Process result
                if ( s.complete )
                    s.complete(xml, status);

                jQuery(io).unbind()

                setTimeout(function()
									{	try 
										{
											jQuery(io).remove();
											jQuery(form).remove();	
											
										} catch(e) 
										{
											jQuery.handleError(s, xml, null, e);
										}									

									}, 100)

                xml = null

            }
        }
        // Timeout checker
        if ( s.timeout > 0 ) 
		{
            setTimeout(function(){
                // Check to see if the request is still happening
                if( !requestDone ) uploadCallback( "timeout" );
            }, s.timeout);
        }
        try 
		{
           // var io = jQuery('#' + frameId);
			var form = jQuery('#' + formId);
			jQuery(form).attr('action', s.url);
			jQuery(form).attr('method', 'POST');
			jQuery(form).attr('target', frameId);
            if(form.encoding)
			{
                form.encoding = 'multipart/form-data';				
            }
            else
			{				
                form.enctype = 'multipart/form-data';
            }			
            jQuery(form).submit();

        } catch(e) 
		{			
            jQuery.handleError(s, xml, null, e);
        }
        if(window.attachEvent){
            document.getElementById(frameId).attachEvent('onload', uploadCallback);
        }
        else{
            document.getElementById(frameId).addEventListener('load', uploadCallback, false);
        } 		
        return {abort: function () {}};	

    },

    uploadHttpData: function( r, type ) {
        var data = !type;
        data = type == "xml" || data ? r.responseXML : r.responseText;
        // If the type is "script", eval it in global context
        if ( type == "script" )
            jQuery.globalEval( data );
        // Get the JavaScript object, if JSON is used.
        if ( type == "json" )
            eval( "data = " + data );
        // evaluate scripts within html
        if ( type == "html" )
            jQuery("<div>").html(data).evalScripts();
			//alert(jQuery('param', data).each(function(){alert(jQuery(this).attr('value'));}));
        return data;
    }
})

function ajaxFileUpload(webroot,uploadFolder,prefix) {
        // TEASERS
        //starting setting some animation when the ajax starts and completes
        jQuery("#uploading")
        .ajaxStart(function(){
            jQuery(this).show();
            jQuery('#uploadingfinished').hide();
            jQuery('#uploadingdone').hide();
        })
        .ajaxComplete(function(){
            jQuery(this).hide();
            jQuery('#uploadingfinished').show();
            jQuery('#uploadingdone').hide();
        });
        /*
            prepareing ajax file upload
            url: the url of script file handling the uploaded files
                        fileElementId: the file type of input element id and it will be the index of  $_FILES Array()
            dataType: it support json, xml
            secureuri:use secure protocol
            success: call back function when the ajax complete
            error: callback function when the ajax failed
        */
        jQuery.ajaxFileUpload
        (
            {
                url:webroot+'ajaxupload/doajaxfileupload_teaser.php',
                secureuri:false,
                fileElementId:'fileToUpload',
                targetFolder:uploadFolder,
                targetPrefix:prefix,
                dataType: 'json',
                success: function (data, status)
				{	
					if(typeof(data.error) != 'undefined')
					{
						if(data.error != '')
						{
							alert('error ajax data error: '+data.error);
						}else
						{
							jQuery("input[id$='TempFile']").val(data.id);
							jQuery("input[id$='TempFileName']").val(data.realname);
							//alert(data.msg);
						}
					}
				},
                error: function (data, status, e)
                {
                    alert('error ajax: '+e);
                }
            }
        )
        return false;
}


function directajaxFileUpload(webroot,uploadFolder,prefix) {
        //starting setting some animation when the ajax starts and completes
        //alert("recipe image upload");
        jQuery("#uploading")
        .ajaxStart(function(){
            jQuery(this).show();
            jQuery('#uploadingfinished').hide();
            jQuery('#uploadingdone').hide();
        })
        .ajaxComplete(function(){
            jQuery(this).hide();
            jQuery('#uploadingfinished').show();
            jQuery('#uploadingdone').hide();
			 jQuery.ajax({
			   type: "POST",
			   url: jQuery('#submitimage').attr('action'),
			   data: jQuery("#submitimage").serialize(),
			   dataType:'text',
			   success: function(msg){
				 jQuery('#imageupload').empty();
				 jQuery('#imgtgt').empty();
				 jQuery('#imgtgt').append(msg);
				 location.reload()
			   }
			 });
        });
        jQuery.ajaxFileUpload
        (
            {
                url:webroot+'ajaxupload/doajaxfileupload.php',
                secureuri:false,
                fileElementId:'fileToUpload',
                targetFolder:uploadFolder,
                targetPrefix:prefix,
                dataType: 'json',
                success: function (data, status)
				{	
					if(typeof(data.error) != 'undefined')
					{
						if(data.error != '')
						{
							//alert('error: '+data.error);
							alert("dataerrror:"+data.error);
						}else
						{
							jQuery("input[id$='TempFile']").val(data.id);
							jQuery("input[id$='TempFileName']").val(data.realname);
							//alert("datamessage"+data.msg);
						}
					}
				},
                error: function (data, status, e)
                {
                    alert('nosuccess:'+data+status+e);            
                }
            }
        )
        return false;
}

function directajaxFileUpload2(webroot,uploadFolder,prefix) {
        //starting setting some animation when the ajax starts and completes
        jQuery("#uploading")
        .ajaxStart(function(){
            jQuery(this).show();
            jQuery('#uploadingfinished').hide();
            jQuery('#uploadingdone').hide();
        })
        .ajaxComplete(function(){
            jQuery(this).hide();
            jQuery('#uploadingfinished').show();
            jQuery('#uploadingdone').hide();
			 jQuery.ajax({
			   type: "POST",
			   url: jQuery('#submitimage').attr('action'),
			   data: jQuery("#submitimage").serialize(),
			   dataType:'text',
			   success: function(msg){
				 jQuery('#imageupload').empty();
				 jQuery('#imgtgt').empty();
				 jQuery('#imgtgt').append(msg);
				 location.reload()
			   }
			 });
        });
        jQuery.ajaxFileUpload
        (
            {
                url:webroot+'ajaxupload/doajaxfileupload_cookbook.php',
                secureuri:false,
                fileElementId:'fileToUpload',
                targetFolder:uploadFolder,
                targetPrefix:prefix,
                dataType: 'json',
                success: function (data, status)
				{	
					if(typeof(data.error) != 'undefined')
					{
						if(data.error != '')
						{
							//alert('error: '+data.error);
							alert("dataerrror:"+data.error);
						}else
						{
							jQuery("input[id$='TempFile']").val(data.id);
							jQuery("input[id$='TempFileName']").val(data.realname);
							//alert("datamessage"+data.msg);
						}
					}
				},
                error: function (data, status, e)
                {
                    alert('nosuccess:'+data+status+e);            
                }
            }
        )
        return false;
}

function userajaxFileUpload(webroot,uploadFolder,prefix) {
        //starting setting some animation when the ajax starts and completes
        jQuery("#uploading")
        .ajaxStart(function(){
            jQuery(this).show();
            jQuery('#uploadingfinished').hide();
            jQuery('#uploadingdone').hide();
        })
        .ajaxComplete(function(){
            jQuery(this).hide();
            jQuery('#uploadingfinished').show();
            jQuery('#uploadingdone').hide();
			 jQuery.ajax({
			   type: "POST",
			   url: jQuery('#submitimage').attr('action'),
			   data: jQuery("#submitimage").serialize(),
			   dataType:'text',
			   success: function(msg){
				 jQuery('#imageupload').empty();
				 //jQuery('#imgtgt').empty();
				 //jQuery('#imgtgt').append(msg);
				 jQuery("#userinfo").load("/cookingstars/mypages/uploadimage_reload");
			   }
			 });
        });
        jQuery.ajaxFileUpload
        (
            {
                url:webroot+'ajaxupload/doajaxfileupload_profile.php',
                secureuri:false,
                fileElementId:'fileToUpload',
                targetFolder:uploadFolder,
                targetPrefix:prefix,
                dataType: 'json',
                success: function (data, status)
				{	
					if(typeof(data.error) != 'undefined')
					{
						if(data.error != '')
						{
							alert('error: '+data.error);
						}else
						{
							jQuery("input[id$='TempFile']").val(data.id);
							jQuery("input[id$='TempFileName']").val(data.realname);
							//alert(data.msg);
						}
					}
				},
                error: function (data, status, e)
                {
                    // sinnvoll?
                    //alert('error ajax: '+e);
                }
            }
        )
        return false;
}

function directajaxFileUpload3(webroot,uploadFolder,prefix) {
        //starting setting some animation when the ajax starts and completes
        jQuery("#Guploading")
        .ajaxStart(function(){
            jQuery(this).show();
            jQuery('#Guploadingfinished').hide();
            jQuery('#Guploadingdone').hide();
        })
        .ajaxComplete(function(){
            jQuery(this).hide();
            jQuery('#Guploadingfinished').show();
            jQuery('#Guploadingdone').hide();
			 jQuery.ajax({
			   type: "POST",
			   url: jQuery('#Gsubmitimage').attr('action'),
			   data: jQuery("#Gsubmitimage").serialize(),
			   dataType:'text',
			   success: function(msg){
				 //jQuery('#imageupload').empty();
				 //jQuery('#imgtgt').empty();
				 //jQuery('#imgtgt').append(msg);
				 //location.reload()
			   }
			 });
        });
        jQuery.ajaxFileUpload
        (
            {
                url:webroot+'ajaxupload/doajaxfileupload_glossary.php',
                secureuri:false,
                fileElementId:'GfileToUpload',
                targetFolder:uploadFolder,
                targetPrefix:prefix,
                dataType: 'json',
                success: function (data, status)
				{	
					if(typeof(data.error) != 'undefined')
					{
						if(data.error != '')
						{
							//alert('error: '+data.error);
							//alert("dataerrror:"+data.error);
							alert("Fehler: "+data.error);
		                    jQuery('#GbuttonUpload').show();
		                    
						}else
						{
							jQuery("input[id$='GTempFile']").val(data.id);
							jQuery("input[id$='GTempFileName']").val(data.realname);
							//alert("datamessage"+data.msg);
							jQuery('#gpicform').trigger('submit');
						}
					}
				},
                error: function (data, status, e)
                {
                    //alert('nosuccess:'+data+status+e);   
                    alert('Fehler:'+data+status+e);    
                    jQuery('#GbuttonUpload').show();       
                }
            }
        ) 
        return false;
}