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ebchost

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Posts posted by ebchost

  1. Thanks for the reply

     

    I doubt something else, so help me understand.

     

    http://sportskevesti.co

    this is my web page

     

    This web page work on next task:

    1. colect xml data (short news)

    2. insert or update title, link of source, description, and image, date...

    3. show this data at frontape, as short news with image and with link to original source. Sometimes news takes in description embed code of the video

     

    i have 35 Sport news source, 1 currency exchange, 1 wether, and 1 new (live score with 250 game average per day

     

    Can geting and importing data from this source`s can be part of Not viewed traffic * ?

  2. I have Not viewed traffic bandwith problem

     

    My maximum bandwith is 4GB

    from 01.02.2013 utnhil 24.02.2013 i have

    -----------------------------------------------------------

    Viewed traffic *

    Unique visitors - 1806

    Number of visits - 9,345(5.17 visits/visitor)

    Pages - 20,552(2.19 Pages/Visit)

    Hits - 46,210(4.94 Hits/Visit)

    Bandwidth - 1.51 GB (169.16 KB/Visit)

    -----------------------------------------------------------

    Not viewed traffic *

    Pages - 25,578

    Hits - 106,869

    Bandwidth - 3.31 GB

    -----------------------------------------------------------

    * Not viewed traffic includes traffic generated by robots, worms, or replies with special HTTP status codes.

    post-114577-0-94509800-1361710867_thumb.png

     

    From Not viewed traffic, the bigest bandwith take HTTP Status codes part:

    "206 Partial Content" - 2.83 GB"

    post-114577-0-17636300-1361710933_thumb.png

     

    Can you tell me more about this?

    Is this problem, and how to fix this ?

  3. I understand now what is the problem...

     

    There's nothing wrong with the display, because contains a lot of tags :) (copy paste from 'View Page source')

     

    $string = "tags, text, <embed  youtube link >, ....";

     

    Q: How to get youtube link from $string get youtube link?

  4. if wee have

    $description =[/color]<strong>Svetaca </strong>na „Mestalji“ u prvom meču osmine finala Lige šampiona, pristalice pariskog kluba su istakle transparent <strong>„Kosovo je Srbija“</strong> na engleskom jeziku, uz srpsku trobojku.</p><p><object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"425\" height=\"350\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0\"><param name=\"src\" value=\"http://www.youtube.com/watch?v=ri2RXhr4FS8\" /><embed type=\"application/x-shockwave-flash\" width=\"425\" height=\"350\" src=\"http://www.youtube.com/watch?v=ri2RXhr4FS8\"></embed></object></p><p>U pitanju je navijačka grupa <strong>Karsud</strong>, koja sebe smatra ultrasima i nije na dobrom glasu u Francuskoj zbog huliganizma.</p><p>Isti transparent navijači <strong>

     

    How wee can extract only youtube link?

  5. if wee have

    $description =[/color][font=monospace][size=1]<strong>[/size][/font][color=#000000][font=monospace][size=1]Svetaca [/size][/font][/color][font=monospace][size=1]</strong>[/size][/font][color=#000000][font=monospace][size=1]na „Mestalji“ u prvom meču osmine finala Lige šampiona, pristalice pariskog kluba su istakle transparent [/size][/font][/color][font=monospace][size=1]<strong>[/size][/font][color=#000000][font=monospace][size=1]„Kosovo je Srbija“[/size][/font][/color][font=monospace][size=1]</strong>[/size][/font][color=#000000][font=monospace][size=1] na engleskom jeziku, uz srpsku trobojku.[/size][/font][/color][font=monospace][size=1]</p>[/size][/font][font=monospace][size=1]<p>[/size][/font][font=monospace][size=1]<object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"425\" height=\"350\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0\">[/size][/font][font=monospace][size=1]<param name=\"src\" value=\"http://www.youtube.com/v/ri2RXhr4FS8\" />[/size][/font][font=monospace][size=1]<embed type=\"application/x-shockwave-flash\" width=\"425\" height=\"350\" src=[url="http://sportskevesti.co/%22http://www.youtube.com/v/ri2RXhr4FS8/%22"]\"http://www.youtube.com/v/ri2RXhr4FS8\"[/url]>[/size][/font][font=monospace][size=1]</embed>[/size][/font][font=monospace][size=1]</object>[/size][/font][font=monospace][size=1]</p>[/size][/font][font=monospace][size=1]<p>[/size][/font][color=#000000][font=monospace][size=1]U pitanju je navijačka grupa [/size][/font][/color][font=monospace][size=1]<strong>[/size][/font][color=#000000][font=monospace][size=1]Karsud[/size][/font][/color][font=monospace][size=1]</strong>[/size][/font][color=#000000][font=monospace][size=1], koja sebe smatra ultrasima i nije na dobrom glasu u Francuskoj zbog huliganizma.[/size][/font][/color][font=monospace][size=1]</p>[/size][/font][font=monospace][size=1]<p>[/size][/font][color=#000000][font=monospace][size=1]Isti transparent navijači [/size][/font][/color][font=monospace][size=1]<strong>[/size][/font][color=#000000][font=monospace][size=1]

     

    How wee can extract only youtube link?

  6. Earlier I reported on this forum for help in creating a rss reader

    Of course I have successfully solved with the help of people from the forum

    Now I would like to go one step further

    and now the problem

     

    There are several types of rss news. For Example:

    1. Some types such as this one contains a part <content:encoded> that is in itself

    http://www.zurnal.rs/category/fudbal/feed?lang=lat

    2. Some types, such as this does not include <content:encoded> the part that is in itself

    http://www.politika.rs/rubrike/Sport/index.1.lt.xml

     

     

    this is error when i try to load RSS soruce from number 2

    Warning: SimpleXMLElement::xpath() [simplexmlelement.xpath]: xmlXPathEval: evaluation failed in C:\Program Files (x86)\EasyPHP-5.3.9\www\reader.php on line 37

     

    this is line:

    36 $result = $item->xpath('content:encoded');

    37 preg_match('/<img[^>]+>/', $result[0], $match);

    38 $item->image = $match[0];

     

     

    Here is the entire code:

    //assigning a rss path  to variable 
    $rss = new SimpleXMLElement( 'Link to RSS news' , null, true);
    
    //Reading RSS elements, and add values ​​to the variable
    //hiar is problem about different versions of RSS source
    foreach($rss->xpath('channel/item') as $item){
    
    		$result = $item->xpath('content:encoded');
    		preg_match('/<img[^>]+>/', $result[0], $match);
    		$item->image = $match[0];
    
    		$naslov 	= mysql_real_escape_string($item->title);
    		$link 		= mysql_real_escape_string($item->link);
    
    		$opis 		= mysql_real_escape_string($item->description);
    		$slika 		= mysql_real_escape_string($item->image);			
    		$datum 		= date('Y-m-d H:m:s');
    
    		$image_object = preg_match_all('/src="(.*?)"/', $result[0], $matches);
    		$image = str_replace( '"','',$matches[0][0]);
    		$imagee = str_replace( 'src=','',$matches[0][0]);
    		echo "$imagee<br><hr>";
    
                            //check whether the image is content:encoded area
                            //if image not egsist incontent:encode part, search in the description
    		if($imagee == ""){			 
    			$description 		= $item->description;
    
    			$descritpion_strip	= strip_tags($description);
    			$description_trim 	= trim($descritpion_strip);						
    
    			$image_object = preg_match_all('/src="(.*?)"/', $description, $matches);
    			$image = str_replace( '"','',$matches[0][0]);
    			$image2 = str_replace( 'src=','',$image);	
    
    			echo $image2;			 
    		}			
    	}
    

     

    If they somehow managed to distinguish version of RSS news, and I will be able to get around this error

     

    how to achieve it?

     

    PS:

    Hiar is result of work with rss news for now.

    http://sportskevesti.co/

    Thanks for helping to achieve this  8)

  7. I trying to display data from a database for editing

     

    I have 2 table:

     

    1. tbl_proizvodi_karakteristike (Translate: tbl_product_caracteristics)

    - In this table i have list of product caracteristic relatet to product 'id' in table 'tbl_product_list' (this 'tbl_product_list' is not important now)

    - field: id, opis, vrednsot, proizvod_id

     

    2. tbl_karakteristike (Translate: tbl_caracteristic)

    - In this table i have list of all caracteristic

    - field: id, opis

     

    in field 'opis' in table 'tbl_proizvodi_karakteristike' i insert 'id' from 'tbl_karkateristike' and that works ok with combo box.

    But, when  i try to edit value in 'tbl_proizvodi_karakteristike', i do not know how to show current value in combo box (i have list of value from 'tbl_karakteristike' in combox, starting from first)

    For examle, if i know that value in selected caracteristics is 'opis = 25', it means that i in combo box on load edit form mast have first value 25 and rest of posible value. For now i have value '1 and rest of value'

     

    Hiar is current code in edit form

     

    <form action='product_carasteristic.php?product_id=<?php echo $p_id; ?>&product_name=<?php echo $p_name; ?>' method='POST'>
    <?php
    		$p_id = $_GET['id'];
    		$karakteristike = mysql_query("SELECT * FROM `tbl_proizvodi_karakteristike` WHERE `id`='$p_id'") or die(mysql_error());
    		while($row = mysql_fetch_array($karakteristike)){
    					$p_id           = $row['id'];
    					$p_opis         = $row['opis'];
    					$p_vrednost     = $row['vrednost'];
    					$p_proizvod_id  = $row['proizvod_id'];
    		?>
    <table>
    	<tr>
    		<td >
    			Karakteristika   
    		</td>
    		<td>
    			<select name="opis"  style="font-family: verdana; font-size:15px; width:342px;">
    			<?php
    				$tbl_karakteristike = mysql_query("SELECT * FROM `tbl_karakteristike`") or die(mysql_error());
    				while($row = mysql_fetch_array($tbl_karakteristike)){
    					$k_id           = $row['id'];
    					$k_opis         = $row['opis'];					
    			?>				
    					<option value='<?php echo $k_id; ?>'><?php echo $k_opis; ?></option>				
    			<?php
    				}
    			?>
    			</select>
    		</td>
    	</tr>
    	<tr>
    		<td>
    			Vrednost karakteristike    
    		</td>
    		<td>
    			<input type="text" name="vrednost" value='<?php echo $p_vrednost; ?>'>				
    		</td>
    	</tr>		
    	<tr>
    		<td>
    		<input type="submit" name="submit" value="Kreiraj">
    		</td>
    		<td>
    		Neophodno je popuniti sva polja
    		</td>
    	</tr>
    </table>
    <?php
    	}
    ?>
    </form>
    

     

    thanks forward :)

  8. this is solution, but is not exelent

     

    if you see my web page after open it, you will see url like

     

    http://radio-la.info/?r=1&width=1366&Height=768 (if resolution is 1366 x 768)

    http://radio-la.info/?r=1&width=1440&Height=900 (if resolution is 1440 * 900)

     

    how to do this, without url ? how to transfer valu from java script to php ? thanks

     

    this is code

     

     

    <?     
    if(!isset($_GET['r']))     
    {     
    echo "<script language=\"JavaScript\">     
    <!--      
    document.location=\"$PHP_SELF?r=1&width=\"+screen.width+\"&Height=\"+screen.height;     
    //-->     
    </script>";     
    }     
    else {         
    
    // Code to be displayed if resolutoin is detected     
         if(isset($_GET['width']) && isset($_GET['Height'])) {     
                   // Resolution  detected
                      $sir = $_GET['width'];
                      $vis = $_GET['Height'];
                      //echo "width $sir";
                      $slo = $sir - 986;
                      //echo "<br>";
                      //echo "free pix width $slo"; 
                      //echo "<br>";
                      $ban = $slo/2;
                      //echo "banner width = $ban";
         }     
         else {     
                  // Resolution not detected 
                  //echo "nema";     
         }     
    }     
    
    ?>

  9. i think that z-index is not solution

    if you  look

    http://www.radio-la.info

     

    if z-index is 1 or more, banner go over web page (bouth), if z-index is 0 or lower, i cann not click on banner, i see only picture from left and right side of web page, available for a click

     

    now, is logical to have z-index on bouth div (banner) value 1 or mor

     

    but, how to count widhth of the banner, (now width of banner is 25% the left is z-index:0; right is z-index:1;)

     

    width = free white space from left or right side of web page

     

    thanks

  10. This is extra example

    http://davidwalsh.name/mootools-drag-drop

     

    but, i need help,

     

    How to organize files

    step by step.

     

    index.php

    <head>   	
    <link rel="stylesheet" href="css/template.css" type="text/css" />
    </head>
    
    <body>
    <?php
    
    $path = $_SERVER['DOCUMENT_ROOT'];
    $path .= "/resources/init.php";
    include_once($path); 
    
    $query = "SELECT * FROM `a_sort_test` ORDER BY `sort_order` ASC";
    $result = mysql_query($query) or die(mysql_error());
    if(mysql_num_rows($result)) {
    
    ?>
    <p>Drag and drop the elements below.  The database gets updated on every drop.</p>
    
    <div id="message-box"><?php echo $message; ?> Waiting for sortation submission...</div>
    
    <form id="dd-form" action="<?php echo $_SERVER['REQUEST_URI']; ?>" method="post">
    <p>
    <input type="checkbox" value="1" name="autoSubmit" id="autoSubmit" <?php if($_POST['autoSubmit']) { echo 'checked="checked"'; } ?> />
    <label for="autoSubmit">Automatically submit on drop event</label>
    </p>
    
    <ul id="sortable-list">
    <?php 
    	$order = array();
    	while($item = mysql_fetch_assoc($result)) {
    		echo '<li title="',$item['id'],'">',$item['title'],'</li>';
    		$order[] = $item['id'];
    	}
    ?>
    </ul>
    <br />
    <input type="hidden" name="sort_order" id="sort_order" value="<?php echo implode(',',$order); ?>" />
    <input type="submit" name="do_submit" value="Submit Sortation" class="button" />
    </form>
    <?php } else { ?>
    
    <p>Sorry!  There are no items in the system.</p>
    
    <?php } ?>
    </body>

     

    tempalete.css

    #sortable-list    { padding:0; }
    #sortable-list li  { padding:4px 8px; color:#000; cursor:move; list-style:none; width:500px; background:#ddd; margin:10px 0; border:1px solid #999; }
    #message-box    { background:#fffea1; border:2px solid #fc0; padding:4px 8px; margin:0 0 14px 0; width:500px; }
    

    resolt is hiar:

    http://www.sportskevesti.co/component/menadzer/sort.php

     

    but what next with other part of example ?

     

    mootols ? Wer and how?

  11. I try somthing like this, but i have problem

    <?php
    $path = $_SERVER['DOCUMENT_ROOT'];
    $path .= "/resources/init.php";
    include_once($path); 
    
    $formacije = "SELECT * FROM `man_formacije` ORDER BY `id` ASC";
    $rezultati = mysql_query($formacije) or die (mysql_error());
    $dropdown = "<select name='formacija'>";
    ?>
    <select>
    <?php
    while($row = mysql_fetch_array($rezultati))
    {
    	$id = $row['id'];
    	$naziv = $row['naziv'];
    	$meta = $_GET['id'];
    	?>
    		<option value="<?php echo $id; ?>"><?php echo $naziv; ?></option>
    	<?php		
    }
    ?>	
    </select>
    <?php
    
    
    if($meta)
    {
    	echo "<br> $id";
    }
    else
    echo "error";
    ?>

     

    I have error message, or if i put ($meta = $_GET['id'];) part of code, below select (combo box) i have echo 20

     

    how to echo (or get) corect value of selctet data from combo box ?

  12. Your kidding aren't you?

     

    i mast write SQL with out ``

     

    thanks

     

    Pardon?

     

    SELECT 
    man_timovi.id, 
    man_timovi.naziv, 
    man_timovi.liga_id,  
    SUM( gold ) , SUM( golg ) , SUM( bodd ) , SUM( bodg ) 
    FROM man_timovi, man_utakmice
    WHERE man_timovi.liga_id = '1'
    AND man_timovi.id = man_utakmice.domacin
    OR man_timovi.id = man_utakmice.gost
    GROUP BY  man_timovi.id 
    ORDER BY SUM(  `man_utakmice`.`bodd` +  `man_utakmice`.`bodg` ) DESC 

     

    the only thing bothering me now is, which is still showing data for the league labeled liga=2, liga=3 .. I want only league 1 (liga_id = 1)

     

     

  13. $utakmice = mysql_query("
    SELECT 
    `man_timovi`.`id`, 
    `man_timovi`.`naizv`, 
    `man_timovi`.`user_id`, 
    `man_utakmice`.`id`,
    `man_utakmice`.`liga_id`, 
    `man_utakmice`.`sezona_id`, 
    `man_utakmice`.`kolo`, 
    `man_utakmice`.`datum,
    `man_utakmice`.`domacin`, 
    `man_utakmice`.`brojd`, 
    `man_utakmice`.`gold`, 
    `man_utakmice`.`golg`, 
    `man_utakmice`.`brojg`, 
    `man_utakmice`.`gost`, 
    SUM(`man_utakmice`.`bodd` + `man_utakmice`.`bodg`)
    
    FROM `man_timovi`,`man_utakmice` 
    
    WHERE `man_utakmice`.`liga_id`= '1' AND `man_timovi`.`id` = `man_utakmice`.`domacin` OR `man_timovi`.`id`=`man_utakmice`.`gost`
    
    GROUP BY `man_timovi`.`id`
    
    ORDER BY SUM(`man_utakmice`.`bodd`+`man_utakmice`.`bodg`) DESC") or die(mysql_error());
    
    while($row = mysql_fetch_array($utakmice))
    {
    ..
    }
    

     

    You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '`.`domacin`, `man_utakmice`.`brojd`, `man_utakmice`.`gold`, `man_utakmice`.`g' at line 9

     

    man_timovi:

    id, liga_id, naziv, user_id berger, sifra

     

    man_utakmice:

    id, liga_id, sezona_id, kolo, datum, domacin, brojd, gold , golg, brojg, gost, bodd, bodg

     

     

  14. I try to make Soccer manager, and i have problem to make fixtures by the automaticly rules of Berger tables as shown in table in botom of this post

     

    I have 10 clubs in the N number of Ligue in table man_timovi

    ------------------------

    | id | name | ligue |

    ------------------------

    | 1 | Club1 | 1 |

    | 2 | Club2 | 1 |

    | 3 | Club3 | 1 |

    |....

    |10 | Club10 | 1 |

    | 11 | Club11 | 2 |

    | 12 | Club12 | 2 |

    | 13 | Club13 | 2 |

    |....

    |20 | Club.20 | 2 |

    |...

    ----------------------

     

    By the Berger rules, first, second.... round is like this:

    -------------------------------------------

    | Round  | Ligue | GAME |

    --------------------------------------------

    Round 1 |  Ligue 1 | ID1 vs ID10

    Round 1 |  Ligue 1 | ID2 vs ID9

    Round 1 |  Ligue 1 | ID3 vs ID8

    Round 1 |  Ligue 1 | ID4 vs ID7

    Round 1 |  Ligue 1 | ID5 vs ID6

    Round 1 |  Ligue 2 | ID11 vs ID20

    Round 1 |  Ligue 2 | ID12 vs ID19

    Round 1 |  Ligue 2 | ID13 vs ID18

    Round 1 |  Ligue 2 | ID14 vs ID17

    Round 1 |  Ligue 2 | ID15 vs ID16

    .... etc (depends on the number of leagues, each league is played for 18 rounds)

    ------------------------------------------------------------------------------------------------------

     

     

    How to make code, with Berger table combiantion  ruls?

     

    Manual, game by game is no good, What if wee have more then 1000 ligue in manager? :)

     

    Thanks

     

    BERGER TABLES FOR 10 CLUBS in halfseson

    --------------------------------------

    R| G1 | G2 | G3 | G4 | G5

    -------------------------------------

    1 | 1-10 | 2-9 | 3-8 | 4-7 | 5-6

    2 | 10-6 | 7-5 | 8-4 | 9-3 | 1-2

    3 | 2-10 | 3-1 | 4-9 | 5-8 | 6-7

    4 | 10-7 | 8-6 | 9-5 | 1-4 | 2-3

    5 | 3-10 | 4-2 | 5-1 | 6-9 | 7-8

    6 | 10-8 | 9-7 | 1-6 | 2-5 | 3-4

    7 | 4-10 | 5-3 | 6-2 | 7-1 | 8-9

    8 | 10-9 | 1-8 | 2-7 | 3-6 | 4-5

    9 | 5-10 | 6-4 | 7-3 | 8-2 | 9-1

    -------------------------------------

     

    R is Round, G1,G2, G3, G4, G5 is number of the game

  15. $faktura_u_s = mysql_query("
    SELECT   `tbl_roba_stanje`.`cena`-((`tbl_roba_stanje`.`cena`/100)*`tbl_roba_stanje`.`rabat_proc`) as `cena_bez`, `tbl_roba_stanje`.`ulaz`, (`cena_bez` * `tbl_roba_stanje`.`ulaz` )  AS `osnovica`
    FROM     `tbl_roba`,`tbl_roba_stanje` 
    WHERE    `tbl_roba`.`id` = `tbl_roba_stanje`.`roba_id` AND `tbl_roba_stanje`.`dokument_id` = '$dokument'") 
    or die(mysql_error());

     

    and error is " Unknown column 'cena_bez' in 'field list' "

     

    Problem is ? 

  16. <div style='width: 603px; float:left; border-style: solid; border-width: 0px 1px 1px 1px;'>
    	<div style='width: 30px; padding: 5px 10px 5px 10px; float: left; border-style: solid; border-width: 0px 1px 0px 0px; text-align:left;  '><?php echo $i;     		?></a></div>
    	<div style='width:330px; padding: 5px 10px 5px 10px; float: left; border-style: solid; border-width: 0px 1px 0px 0px; text-align:left;  '><?php echo "$sta_svrha_placanja <br> $sta_referenca <br> $sta_zaduzenje - $sta_odobrenje <br>";	?></a></div>
    	<div style='width: 80px; padding: 5px 10px 5px 10px; float: left; border-style: solid; border-width: 0px 1px 0px 0px; text-align:right; '><?php echo $sta_duguje;     	?></a></div>
    	<div style='width: 80px; padding: 5px 10px 5px 10px; float: left; border-style: solid; border-width: 0px 0px 0px 0px; text-align:right; '><?php echo $sta_potrazuje;  	?></a></div>
    </div>
    

  17. You should only store the user-specific data in the session. You shouldn't use sessions to carry dynamic information - that's not what they were designed for.

     

    ok, thanks

     

    What you recomand for this? (because they secretly want to keep inforamicije such as id, etc.)

  18. a brief description of what I want to do

    1. I made a login session, and works without any problems.

    2. Any user who logs on to the site, after logging, see the list of programs that create and use the site.

    3. Choosing one of the program, which belong to login user, the user can view a list of: payments, invoices, statements, statements that belong only to him within a given program

     

    Problem in  3:

    I do not want to give for users of applications the ability to see in the link (for examle "index.php?option=programs&userid=1&programs=2") with data such as id, username, or something similar. So I try to do all over the session as in the code below:

    list of program for active session - programs.php

    <?php
    
    session_start();
    
    //takes on a value for the logged in user id in the session
    $indentifikacija = $_SESSION['id'];
    
    $path  = $_SERVER['DOCUMENT_ROOT'];
    $path .= "/knjige/resources/init.php";
    include_once($path);
    
    $programi = mysql_query("SELECT * FROM `tbl_programi` WHERE `user_id`='$indentifikacija'") or die(mysql_error());
    while($row = mysql_fetch_assoc($programi))
    {
    	$idprg		= $row['idprg'];
    	$program	= $row['program'];
    	$user_id 	= $row['user_id'];
    	$datum	 	= $row['datum'];
    
                    echo " $idprg"; 
                    ?>
    	<a href='/knjige/modules/mod_izvodi/'>
                             <?php 
                             
                              echo " $program" ; 
                             
                             //taking the value of a variable that contains the session id of program 
                             $_SESSION['idprg']=$idprg	
                            
                             ?>
                    </a>
    
    	<?php 
                     echo " $user_id";
    	 echo " $datum";
    }
    ?>

     

    //taking the value of a variable that contains the session id of program

      $_SESSION['idprg']=$idprg

     

    When I in this application click on a program in the list,  for the list of documents in selected programe, code always open a list of documents for the last program (the value of the last variable $idprg)

     

    Q1: Is it possible to do something like this

    Q2: If it is possible, where I am wrong, and how to perform

     

    thanks

     

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