+
+/**
+ * left_main.php
+ *
+ * Copyright (c) 1999-2003 The SquirrelMail Project Team
+ * Licensed under the GNU GPL. For full terms see the file COPYING.
+ *
+ * This is the code for the left bar. The left bar shows the folders
+ * available, and has cookie information.
+ *
+ * $Id$
+ */
+
+/* Path for SquirrelMail required files. */
+define('SM_PATH','../');
+
+/* SquirrelMail required files. */
+require_once(SM_PATH . 'include/validate.php');
+require_once(SM_PATH . 'functions/imap.php');
+require_once(SM_PATH . 'functions/plugin.php');
+require_once(SM_PATH . 'functions/page_header.php');
+require_once(SM_PATH . 'functions/html.php');
+
+/* These constants are used for folder stuff. */
+define('SM_BOX_UNCOLLAPSED', 0);
+define('SM_BOX_COLLAPSED', 1);
+
+/* --------------------- FUNCTIONS ------------------------- */
+
+function formatMailboxName($imapConnection, $box_array) {
+
+ global $folder_prefix, $trash_folder, $sent_folder,
+ $color, $move_to_sent, $move_to_trash,
+ $unseen_notify, $unseen_type, $collapse_folders,
+ $draft_folder, $save_as_draft,
+ $use_special_folder_color;
+ $real_box = $box_array['unformatted'];
+ $mailbox = str_replace(' ','',$box_array['formatted']);
+ $mailboxURL = urlencode($real_box);
+
+ /* Strip down the mailbox name. */
+ if (ereg("^( *)([^ ]*)$", $mailbox, $regs)) {
+ $mailbox = $regs[2];
+ }
+ $unseen = 0;
+ $status = array('','');
+ if (($unseen_notify == 2 && $real_box == 'INBOX') ||
+ $unseen_notify == 3) {
+ $tmp_status = create_unseen_string($real_box, $box_array, $imapConnection, $unseen_type );
+ if ($status !== false) {
+ $status = $tmp_status;
+ }
+ }
+ list($unseen_string, $unseen) = $status;
+ $special_color = ($use_special_folder_color && isSpecialMailbox($real_box));
+
+ /* Start off with a blank line. */
+ $line = '';
+
+ /* If there are unseen message, bold the line. */
+ if ($unseen > 0) { $line .= '<B>'; }
+
+ /* Create the link for this folder. */
+ if ($status !== false) {
+ $line .= '<a href="right_main.php?PG_SHOWALL=0&sort=0&startMessage=1&mailbox='.
+ $mailboxURL.'" TARGET="right" STYLE="text-decoration:none">';
+ }
+ if ($special_color) {
+ $line .= "<font color=\"$color[11]\">";
+ }
+ if ( $mailbox == 'INBOX' ) {
+ $line .= _("INBOX");
+ } else {
+ $line .= str_replace(' ',' ',$mailbox);
+ }
+ if ($special_color == TRUE)
+ $line .= '</font>';
+ if ($status !== false) {
+ $line .= '</a>';
+ }
+
+ /* If there are unseen message, close bolding. */
+ if ($unseen > 0) { $line .= "</B>"; }
+
+ /* Print unseen information. */
+ if ($unseen_string != '') {
+ $line .= " <SMALL>$unseen_string</SMALL>";
+ }
+
+ /* If it's the trash folder, show a purge link when needed */
+ if (($move_to_trash) && ($real_box == $trash_folder)) {
+ if (! isset($numMessages)) {
+ $numMessages = sqimap_get_num_messages($imapConnection, $real_box);
+ }
+
+ if (($numMessages > 0) or ($box_array['parent'] == 1)) {
+ $urlMailbox = urlencode($real_box);
+ $line .= "\n<small>\n" .
+ " (<A HREF=\"empty_trash.php\" style=\"text-decoration:none\">"._("purge")."</A>)" .
+ "</small>";
+ } else {
+ $line .= concat_hook_function('left_main_after_each_folder',
+ array(isset($numMessages) ? $numMessages : '',$real_box,$imapConnection));
+ }
+ }
+
+ /* Return the final product. */
+ return ($line);
+}
+
+/**
+ * Recursive function that computes the collapsed status and parent
+ * (or not parent) status of this box, and the visiblity and collapsed
+ * status and parent (or not parent) status for all children boxes.
+ */
+function compute_folder_children(&$parbox, $boxcount) {
+ global $boxes, $data_dir, $username, $collapse_folders;
+ $nextbox = $parbox + 1;
+
+ /* Retreive the name for the parent box. */
+ $parbox_name = $boxes[$parbox]['unformatted'];
+
+ /* 'Initialize' this parent box to childless. */
+ $boxes[$parbox]['parent'] = FALSE;
+
+ /* Compute the collapse status for this box. */
+ if( isset($collapse_folders) && $collapse_folders ) {
+ $collapse = getPref($data_dir, $username, 'collapse_folder_' . $parbox_name);
+ $collapse = ($collapse == '' ? SM_BOX_UNCOLLAPSED : $collapse);
+ } else {
+ $collapse = SM_BOX_UNCOLLAPSED;
+ }
+ $boxes[$parbox]['collapse'] = $collapse;
+
+ /* Otherwise, get the name of the next box. */
+ if (isset($boxes[$nextbox]['unformatted'])) {
+ $nextbox_name = $boxes[$nextbox]['unformatted'];
+ } else {
+ $nextbox_name = '';
+ }
+
+ /* Compute any children boxes for this box. */
+ while (($nextbox < $boxcount) &&
+ (is_parent_box($boxes[$nextbox]['unformatted'], $parbox_name))) {
+
+ /* Note that this 'parent' box has at least one child. */
+ $boxes[$parbox]['parent'] = TRUE;
+
+ /* Compute the visiblity of this box. */
+ $boxes[$nextbox]['visible'] = ($boxes[$parbox]['visible'] &&
+ ($boxes[$parbox]['collapse'] != SM_BOX_COLLAPSED));
+
+ /* Compute the visibility of any child boxes. */
+ compute_folder_children($nextbox, $boxcount);
+ }
+
+ /* Set the parent box to the current next box. */
+ $parbox = $nextbox;
+}
+
+/**
+ * Create the link for a parent folder that will allow that
+ * parent folder to either be collapsed or expaned, as is
+ * currently appropriate.
+ */
+function create_collapse_link($boxnum) {
+ global $boxes, $imapConnection, $unseen_notify, $color;
+ $mailbox = urlencode($boxes[$boxnum]['unformatted']);
+
+ /* Create the link for this collapse link. */
+ $link = '<a target="left" style="text-decoration:none" ' .
+ 'href="left_main.php?';
+ if ($boxes[$boxnum]['collapse'] == SM_BOX_COLLAPSED) {
+ $link .= "unfold=$mailbox\">+";
+ } else {
+ $link .= "fold=$mailbox\">-";
+ }
+ $link .= '</a>';
+
+ $hooklink = do_hook_function('create_collapse_link',$link);
+ if ($hooklink != '')
+ $link = $hooklink;
+
+ /* Return the finished product. */
+ return ($link);
+}
+
+/**
+ * create_unseen_string:
+ *
+ * Create unseen and total message count for both this folder and
+ * it's subfolders.
+ *
+ * @param string $boxName name of the current mailbox
+ * @param array $boxArray array for the current mailbox
+ * @param $imapConnection current imap connection in use
+ * @return array[0] unseen message string (for display)
+ * @return array[1] unseen message count
+ */
+function create_unseen_string($boxName, $boxArray, $imapConnection, $unseen_type) {
+ global $boxes, $unseen_type, $color, $unseen_cum;
+
+ /* Initialize the return value. */
+ $result = array(0,0);
+
+ /* Initialize the counts for this folder. */
+ $boxUnseenCount = 0;
+ $boxMessageCount = 0;
+ $totalUnseenCount = 0;
+ $totalMessageCount = 0;
+
+ /* Collect the counts for this box alone. */
+ $status = sqimap_status_messages($imapConnection, $boxName);
+ $boxUnseenCount = $status['UNSEEN'];
+ if ($boxUnseenCount === false) {
+ return false;
+ }
+ if ($unseen_type == 2) {
+ $boxMessageCount = $status['MESSAGES'];
+ }
+
+ /* Initialize the total counts. */
+
+ if ($boxArray['collapse'] == SM_BOX_COLLAPSED && $unseen_cum) {
+ /* Collect the counts for this boxes subfolders. */
+ $curBoxLength = strlen($boxName);
+ $boxCount = count($boxes);
+
+ for ($i = 0; $i < $boxCount; ++$i) {
+ /* Initialize the counts for this subfolder. */
+ $subUnseenCount = 0;
+ $subMessageCount = 0;
+
+ /* Collect the counts for this subfolder. */
+ if (($boxName != $boxes[$i]['unformatted'])
+ && (substr($boxes[$i]['unformatted'], 0, $curBoxLength) == $boxName)
+ && !in_array('noselect', $boxes[$i]['flags'])) {
+ $status = sqimap_status_messages($imapConnection, $boxes[$i]['unformatted']);
+ $subUnseenCount = $status['UNSEEN'];
+ if ($unseen_type == 2) {
+ $subMessageCount = $status['MESSAGES'];;
+ }
+ /* Add the counts for this subfolder to the total. */
+ $totalUnseenCount += $subUnseenCount;
+ $totalMessageCount += $subMessageCount;
+ }
+ }
+
+ /* Add the counts for all subfolders to that of the box. */
+ $boxUnseenCount += $totalUnseenCount;
+ $boxMessageCount += $totalMessageCount;
+ }
+
+ /* And create the magic unseen count string. */
+ /* Really a lot more then just the unseen count. */
+ if (($unseen_type == 1) && ($boxUnseenCount > 0)) {
+ $result[0] = "($boxUnseenCount)";
+ } else if ($unseen_type == 2) {
+ $result[0] = "($boxUnseenCount/$boxMessageCount)";
+ $result[0] = "<font color=\"$color[11]\">$result[0]</font>";
+ }
+
+ /* Set the unseen count to return to the outside world. */
+ $result[1] = $boxUnseenCount;
+
+ /* Return our happy result. */
+ return ($result);
+}
+
+/**
+ * This simple function checks if a box is another box's parent.
+ */
+function is_parent_box($curbox_name, $parbox_name) {
+ global $delimiter;
+
+ /* Extract the name of the parent of the current box. */
+ $curparts = explode($delimiter, $curbox_name);
+ $curname = array_pop($curparts);
+ $actual_parname = implode($delimiter, $curparts);
+ $actual_parname = substr($actual_parname,0,strlen($parbox_name));
+
+ /* Compare the actual with the given parent name. */
+ return ($parbox_name == $actual_parname);
+}
+
+function listBoxes ($boxes, $j=0 ) {
+ global $data_dir, $username, $startmessage, $color, $unseen_notify, $unseen_type,
+ $move_to_trash, $trash_folder, $collapse_folders, $imapConnection;
+ $pre = '<nobr>';
+ $end = '';
+ $collapse = false;
+ $unseen_type = 1;
+ $unseen_notify = 0;
+ $unseen = 0;
+
+ /* Get unseen/total display prefs */
+ $unseen_type = getPref( $data_dir , $username , 'unseen_type' );
+ $unseen_notify = getPref( $data_dir , $username , 'unseen_notify' );
+
+ if (isset($boxes) && !empty($boxes)) {
+ $mailbox = $boxes->mailboxname_full;
+ $leader = '<tt>';
+ $leader .= str_repeat(' ',$j);
+ $mailboxURL = urlencode($mailbox);
+
+ /* get unseen/total messages information */
+ /* Only need to display info when option is set */
+ if (isset($unseen_notify) && ($unseen_notify > 1)) {
+
+ if ($boxes->unseen !== false) {
+ $unseen = $boxes->unseen;
+ } else {
+ $unseen = 0;
+ }
+
+ /*
+ Should only display unseen info if the folder is inbox
+ or you set the option for all folders
+ */
+
+ if ((strtolower($mailbox) == 'inbox') || ($unseen_notify == 3)) {
+ $unseen_string = $unseen;
+
+
+ /* If users requests, display message count too */
+ if (isset($unseen_type) && ($unseen_type == 2)) {
+ $numMessages = $boxes->total;
+ $unseen_string .= '/' . $numMessages;
+ }
+
+ $unseen_string = "<font color=\"$color[11]\">($unseen_string)</font>";
+
+ /*
+ Finally allow the script to display the values by setting a boolean.
+ This can only occur if the unseen count is great than 0 (if you have
+ unseen count only), or you have the message count too.
+ */
+ if (($unseen > 0) || (isset($unseen_type) && ($unseen_type ==2))) {
+ $unseen_found = true;
+ }
+
+ }
+
+ }
+
+ if (isset($boxes->mbxs[0]) && $collapse_folders) {
+ $collapse = getPref($data_dir, $username, 'collapse_folder_' . $mailbox);
+ $collapse = ($collapse == '' ? SM_BOX_UNCOLLAPSED : $collapse);
+
+ $link = '<a target="left" style="text-decoration:none" ' .'href="left_main.php?';
+ if ($collapse) {
+ $link .= "unfold=$mailboxURL\">$leader+ </tt>";
+ } else {
+ $link .= "fold=$mailboxURL\">$leader- </tt>";
+ }
+ $link .= '</a>';
+ $pre .= $link;
+ } else {
+ $pre.= $leader . ' </tt>';
+ }
+
+ /* If there are unseen message, bold the line. */
+ if (($move_to_trash) && ($mailbox == $trash_folder)) {
+ if (! isset($boxes->total)) {
+ $boxes->total = sqimap_status_messages($imapConnection, $mailbox);
+ }
+ if ($unseen > 0) {
+ $pre .= '<b>';
+ }
+ $pre .= "<a href=\"right_main.php?PG_SHOWALL=0&sort=0;startMessage=1&mailbox=$mailboxURL\" target=\"right\" style=\"text-decoration:none\">";
+ if ($unseen > 0) {
+ $end .= '</b>';
+ }
+ $end .= '</a>';
+ if ($boxes->total > 0) {
+ if ($unseen > 0) {
+ $pre .= '<b>';
+ }
+ $pre .= "<a href=\"right_main.php?PG_SHOWALL=0&sort=0;startMessage=1&mailbox=$mailboxURL\" target=\"right\" style=\"text-decoration:none\">";
+ if ($unseen > 0) {
+ $end .= '</b>';
+ }
+ $end .= "\n<small>\n" .
+ " (<a href=\"empty_trash.php\" style=\"text-decoration:none\">"._("purge")."</a>)" .
+ "</small>";
+ }
+ } else {
+ if (!$boxes->is_noselect || strtolower($boxes->mailboxname_full)=="inbox") {
+ if ($unseen > 0) {
+ $pre .= '<b>';
+ }
+ $pre .= "<a href=\"right_main.php?PG_SHOWALL=0&sort=0&startMessage=1&mailbox=$mailboxURL\" target=\"right\" style=\"text-decoration:none\">";
+ if ($unseen > 0) {
+ $end .= '</b>';
+ }
+ $end .= '</a>';
+ }
+ }
+
+ /* Print unseen information. */
+ if (isset($unseen_found) && $unseen_found) {
+ $end .= " <small>$unseen_string</small>";
+ }
+
+ $font = '';
+ $fontend = '';
+ if ($boxes->is_special) {
+ $font = "<font color=\"$color[11]\">";
+ $fontend = "</font>";
+ }
+ $end .= '</nobr>';
+
+ if (!$boxes->is_root) {
+ echo "" . $pre .$font. $boxes->mailboxname_sub .$fontend . $end. '<br />' . "\n";
+ $j++;
+ }
+
+ if (!$collapse || $boxes->is_root) {
+ for ($i = 0; $i <count($boxes->mbxs); $i++) {
+ listBoxes($boxes->mbxs[$i],$j);
+ }
+ }
+ }
+}
+
+function ListAdvancedBoxes ($boxes, $mbx, $j='ID.0000' ) {
+ global $data_dir, $username, $startmessage, $color, $unseen_notify, $unseen_type,
+ $move_to_trash, $trash_folder, $collapse_folders;
+
+ /* use_folder_images only works if the images exist in ../images */
+ $use_folder_images = true;
+
+ $pre = '';
+ $end = '';
+ $collapse = false;
+ $unseen_found = false;
+ $unseen = 0;
+
+ if ($boxes) {
+ $mailbox = $boxes->mailboxname_full;
+ $mailboxURL = urlencode($mailbox);
+
+ /* Only need to display info when option is set */
+ if (isset($unseen_notify) && ($unseen_notify > 1)) {
+
+ if ($boxes->unseen !== false) {
+ $unseen = $boxes->unseen;
+ } else {
+ $unseen = 0;
+ }
+
+ /*
+ Should only display unseen info if the folder is inbox
+ or you set the option for all folders
+ */
+
+ if ((strtolower($mailbox) == 'inbox') || ($unseen_notify == 3)) {
+ $unseen_string = $unseen;
+
+
+ /* If users requests, display message count too */
+ if (isset($unseen_type) && ($unseen_type == 2)) {
+ $numMessages = $boxes->total;
+ $unseen_string .= '/' . $numMessages;
+ }
+
+ $unseen_string = "<font color=\"$color[11]\">($unseen_string)</font>";
+
+ /*
+ Finally allow the script to display the values by setting a boolean.
+ This can only occur if the unseen count is great than 0 (if you have
+ unseen count only), or you have the message count too.
+ */
+ if (($unseen > 0) || (isset($unseen_type) && ($unseen_type ==2))) {
+ $unseen_found = true;
+ }
+
+ }
+
+ }
+
+ /* If there are unseen message, bold the line. */
+ if ($unseen > 0) { $pre .= '<b>'; }
+
+ /* color special boxes */
+ if ($boxes->is_special) {
+ $pre .= "<font color=\"$color[11]\">";
+ $end .= '</font>';
+ }
+
+ /* If there are unseen message, close bolding. */
+ if ($unseen > 0) { $end .= '</b>'; }
+
+ /* Print unseen information. */
+ if (isset($unseen_found) && $unseen_found) {
+ $end .= " $unseen_string";
+ }
+
+ if (($move_to_trash) && ($mailbox == $trash_folder)) {
+ if (! isset($numMessages)) {
+ $numMessages = $boxes->total;
+ }
+ if ($numMessages > 0) {
+ $urlMailbox = urlencode($mailbox);
+ $pre .= "\n<small>\n" .
+ " (<a class=\"mbx_link\" href=\"empty_trash.php\">"._("purge")."</a>)" .
+ "</small>";
+ }
+ } else {
+ if (!$boxes->is_noselect) { /* \Noselect boxes can't be selected */
+ $pre .= "<a class=\"mbx_link\" href=\"right_main.php?PG_SHOWALL=0&sort=0&startMessage=1&mailbox=$mailboxURL\" target=\"right\">";
+ $end .= '</a>';
+ }
+ }
+
+ if (!$boxes->is_root) {
+ if ($use_folder_images) {
+ if ($boxes->is_inbox) {
+ $folder_img = '../images/inbox.png';
+ } else if ($boxes->is_sent) {
+ $folder_img = '../images/senti.png';
+ } else if ($boxes->is_trash) {
+ $folder_img = '../images/delitem.png';
+ } else if ($boxes->is_draft) {
+ $folder_img = '../images/draft.png';
+ } else $folder_img = '../images/folder.png';
+ $folder_img = ' <img src="'.$folder_img.'" height="15" valign="center" /> ';
+ } else $folder_img = '';
+ if (!isset($boxes->mbxs[0])) {
+ echo ' ' . html_tag( 'div',
+ $pre . $folder_img . $boxes->mailboxname_sub . $end ,
+ 'left', '', 'class="mbx_sub" id="' .$j. '"' )
+ . "\n";
+ } else {
+ /* get collapse information */
+ if ($collapse_folders) {
+ $link = '<a target="left" style="text-decoration:none" ' .'href="left_main.php?';
+ $form_entry = $j.'F';
+ if (isset($mbx) && isset($mbx[$form_entry])) {
+ $collapse = $mbx[$form_entry];
+ if ($collapse) {
+ setPref($data_dir, $username, 'collapse_folder_'.$boxes->mailboxname_full , SM_BOX_COLLAPSED);
+ } else {
+ setPref($data_dir, $username, 'collapse_folder_'.$boxes->mailboxname_full , SM_BOX_UNCOLLAPSED);
+ }
+ } else {
+ $collapse = getPref($data_dir, $username, 'collapse_folder_' . $mailbox);
+ $collapse = ($collapse == '' ? SM_BOX_UNCOLLAPSED : $collapse);
+ }
+ if ($collapse) {
+ $link = '<a href="javascript:void(0)">'." <img src=\"../images/plus.png\" border=\"1\" id=$j onclick=\"hidechilds(this)\" /></a>";
+ } else {
+ $link = '<a href="javascript:void(0)">'."<img src=\"../images/minus.png\" border=\"1\" id=$j onclick=\"hidechilds(this)\" /></a>";
+ }
+ $collapse_link = $link;
+ } else $collapse_link='';
+ echo ' ' . html_tag( 'div',
+ $collapse_link . $pre . $folder_img . ' '. $boxes->mailboxname_sub . $end ,
+ 'left', '', 'class="mbx_par" id="' .$j. 'P"' )
+ . "\n";
+ echo ' <input type="hidden" name="mbx['.$j. 'F]" value="'.$collapse.'" id="mbx['.$j.'F]" />'."\n";
+ }
+ }
+ if ($collapse) {
+ $visible = ' style="display:none;"';
+ } else {
+ $visible = ' style="display:block;"';
+ }
+
+ if (isset($boxes->mbxs[0]) && !$boxes->is_root) /* mailbox contains childs */
+ echo html_tag( 'div', '', 'left', '', 'class="par_area" id='.$j.'.0000 '. $visible ) . "\n";
+
+ if ($j !='ID.0000') {
+ $j = $j .'.0000';
+ }
+ for ($i = 0; $i <count($boxes->mbxs); $i++) {
+ $j++;
+ listAdvancedBoxes($boxes->mbxs[$i],$mbx,$j);
+ }
+ if (isset($boxes->mbxs[0]) && !$boxes->is_root ) echo '</div>'."\n\n";
+ }
+}
+
+
+
+
+/* -------------------- MAIN ------------------------ */
+
+/* get globals */
+sqgetGlobalVar('username', $username, SQ_SESSION);
+sqgetGlobalVar('key', $key, SQ_COOKIE);
+sqgetGlobalVar('delimiter', $delimiter, SQ_SESSION);
+sqgetGlobalVar('onetimepad', $onetimepad, SQ_SESSION);
+
+sqgetGlobalVar('fold', $fold, SQ_GET);
+sqgetGlobalVar('unfold', $unfold, SQ_GET);
+
+/* end globals */
+
+// open a connection on the imap port (143)
+$imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 10); // the 10 is to hide the output
+
+/**
+ * Using stristr since older preferences may contain "None" and "none".
+ */
+if (isset($left_refresh) && ($left_refresh != '') &&
+ !stristr($left_refresh, 'none')){
+ $xtra = "\n<meta http-equiv=\"Expires\" content=\"Thu, 01 Dec 1994 16:00:00 GMT\" />\n" .
+ "<meta http-equiv=\"Pragma\" content=\"no-cache\" />\n".
+ "<meta http-equiv=\"REFRESH\" content=\"$left_refresh;URL=left_main.php\" />\n";
+} else {
+ $xtra = '';
+}
+
+/**
+ * $advanced_tree and $oldway are boolean vars which are default set to default
+ * SM behaviour.
+ * Setting $oldway to false causes left_main.php to use the new experimental
+ * way of getting the mailbox-tree.
+ * Setting $advanced tree to true causes SM to display a experimental
+ * mailbox-tree with dhtml behaviour.
+ * It only works on browsers which supports css and javascript. The used
+ * javascript is experimental and doesn't support all browsers. It is tested on
+ * IE6 an Konquerer 3.0.0-2.
+ * In the function ListAdvancedBoxes there is another var $use_folder_images.
+ * setting this to true is only usefull if the images exists in ../images.
+ *
+ * Feel free to experiment with the code and report bugs and enhancements
+ * to marc@its-projects.nl
+ **/
+
+$advanced_tree = false; /* set this to true if you want to see a nicer mailboxtree */
+$oldway = false; /* default SM behaviour */
+
+if ($advanced_tree) {
+$xtra .= <<<ECHO
+<script language="Javascript" TYPE="text/javascript">
+
+<!--
+
+ function hidechilds(el) {
+ id = el.id+".0000";
+ form_id = "mbx[" + el.id +"F]";
+ if (document.all) {
+ ele = document.all[id];
+ if (ele) {
+ if(ele.style.display == "none") {
+ ele.style.display = "block";
+ ele.style.visibility = "visible"
+ el.src="../images/minus.png";
+ document.all[form_id].value=0;
+ } else {
+ ele.style.display = "none";
+ ele.style.visibility = "hidden"
+ el.src="../images/plus.png";
+ document.all[form_id].value=1;
+ }
+ }
+ } else if (document.getElementById) {
+ ele = document.getElementById(id);
+ if (ele) {
+ if(ele.style.display == "none") {
+ ele.style.display = "block";
+ ele.style.visibility = "visible"
+ el.src="../images/minus.png";
+ document.getElementById(form_id).value=0;
+ } else {
+ ele.style.display = "none";
+ ele.style.visibility = "hidden"
+ el.src="../images/plus.png";
+ document.getElementById(form_id).value=1;
+ }
+ }
+ }
+ }
+
+ function preload() {
+ if (!document.images) return;
+ var ar = new Array();
+ var arguments = preload.arguments;
+ for (var i = 0; i<arguments.length; i++) {
+ ar[i] = new Image();
+ ar[i].src = arguments[i];
+ }