From ea536d2f6edb89740ae0d12f828882e36474f7b7 Mon Sep 17 00:00:00 2001
From: Nate <github@najo.com>
Date: Wed, 23 Oct 2019 21:19:37 -0600
Subject: [PATCH] Button class updates, logic updates to other files.

---
 app/access_controls/access_controls.php | 22 +++++----
 app/bridges/bridges.php                 | 34 ++++++++-----
 app/call_block/call_block.php           | 34 ++++++++-----
 app/call_broadcast/call_broadcast.php   | 18 ++++---
 app/xml_cdr/xml_cdr.php                 |  4 +-
 resources/classes/button.php            | 65 +++++++++++++++++++++++--
 themes/default/css.php                  |  6 +++
 themes/default/template.php             | 24 +++++++++
 8 files changed, 161 insertions(+), 46 deletions(-)

diff --git a/app/access_controls/access_controls.php b/app/access_controls/access_controls.php
index 69e027e3fc..7f880e02a1 100644
--- a/app/access_controls/access_controls.php
+++ b/app/access_controls/access_controls.php
@@ -123,10 +123,10 @@
 	if (permission_exists('access_control_add')) {
 		echo button::create(['type'=>'button','label'=>$text['button-add'],'icon'=>$_SESSION['theme']['button_icon_add'],'link'=>'access_control_edit.php']);
 	}
-	if (permission_exists('access_control_add')) {
+	if (permission_exists('access_control_add') && $access_controls) {
 		echo button::create(['type'=>'button','label'=>$text['button-copy'],'icon'=>$_SESSION['theme']['button_icon_copy'],'onclick'=>"if (confirm('".$text['confirm-copy']."')) { list_action_set('copy'); list_form_submit('form_list'); } else { this.blur(); return false; }"]);
 	}
-	if (permission_exists('access_control_delete')) {
+	if (permission_exists('access_control_delete') && $access_controls) {
 		echo button::create(['type'=>'button','label'=>$text['button-delete'],'icon'=>$_SESSION['theme']['button_icon_delete'],'onclick'=>"if (confirm('".$text['confirm-delete']."')) { list_action_set('delete'); list_form_submit('form_list'); } else { this.blur(); return false; }"]);
 	}
 	echo "<form id='form_search' class='inline' method='get'>\n";
@@ -148,9 +148,11 @@
 
 	echo "<table class='list'>\n";
 	echo "<tr class='list-header'>\n";
-	echo "	<th class='checkbox'>\n";
-	echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' value='' onclick='list_all_toggle();'>\n";
-	echo "	</th>\n";
+	if (permission_exists('access_control_add') || permission_exists('access_control_delete')) {
+		echo "	<th class='checkbox'>\n";
+		echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' onclick='list_all_toggle();' ".($access_controls ?: "style='visibility: hidden;'").">\n";
+		echo "	</th>\n";
+	}
 	echo th_order_by('access_control_name', $text['label-access_control_name'], $order_by, $order);
 	echo th_order_by('access_control_default', $text['label-access_control_default'], $order_by, $order);
 	echo th_order_by('access_control_description', $text['label-access_control_description'], $order_by, $order, null, "class='hide-xs'");
@@ -166,10 +168,12 @@
 				$list_row_url = "access_control_edit.php?id=".urlencode($row['access_control_uuid']);
 			}
 			echo "<tr class='list-row' href='".$list_row_url."'>\n";
-			echo "	<td class='checkbox'>\n";
-			echo "		<input type='checkbox' name='access_controls[".$x."][checked]' id='checkbox_".$x."' value='true' onclick=\"if (!this.checked) { document.getElementById('checkbox_all').checked = false; }\">\n";
-			echo "		<input type='hidden' name='access_controls[".$x."][uuid]' value='".escape($row['access_control_uuid'])."' />\n";
-			echo "	</td>\n";
+			if (permission_exists('access_control_add') || permission_exists('access_control_delete')) {
+				echo "	<td class='checkbox'>\n";
+				echo "		<input type='checkbox' name='access_controls[".$x."][checked]' id='checkbox_".$x."' value='true' onclick=\"if (!this.checked) { document.getElementById('checkbox_all').checked = false; }\">\n";
+				echo "		<input type='hidden' name='access_controls[".$x."][uuid]' value='".escape($row['access_control_uuid'])."' />\n";
+				echo "	</td>\n";
+			}
 			echo "	<td><a href='".$list_row_url."'>".escape($row['access_control_name'])."</a></td>\n";
 			echo "	<td>".escape($row['access_control_default'])."</td>\n";
 			echo "	<td class='description overflow hide-xs'>".escape($row['access_control_description'])."</td>\n";
diff --git a/app/bridges/bridges.php b/app/bridges/bridges.php
index e86956d4be..14aa00edf9 100644
--- a/app/bridges/bridges.php
+++ b/app/bridges/bridges.php
@@ -147,13 +147,13 @@
 	if (permission_exists('bridge_add')) {
 		echo button::create(['type'=>'button','label'=>$text['button-add'],'icon'=>$_SESSION['theme']['button_icon_add'],'link'=>'bridge_edit.php']);
 	}
-	if (permission_exists('bridge_add')) {
+	if (permission_exists('bridge_add') && $bridges) {
 		echo button::create(['type'=>'button','label'=>$text['button-copy'],'icon'=>$_SESSION['theme']['button_icon_copy'],'onclick'=>"if (confirm('".$text['confirm-copy']."')) { list_action_set('copy'); list_form_submit('form_list'); } else { this.blur(); return false; }"]);
 	}
-	if (permission_exists('bridge_edit')) {
+	if (permission_exists('bridge_edit') && $bridges) {
 		echo button::create(['type'=>'button','label'=>$text['button-toggle'],'icon'=>$_SESSION['theme']['button_icon_toggle'],'onclick'=>"if (confirm('".$text['confirm-toggle']."')) { list_action_set('toggle'); list_form_submit('form_list'); } else { this.blur(); return false; }"]);
 	}
-	if (permission_exists('bridge_delete')) {
+	if (permission_exists('bridge_delete') && $bridges) {
 		echo button::create(['type'=>'button','label'=>$text['button-delete'],'icon'=>$_SESSION['theme']['button_icon_delete'],'onclick'=>"if (confirm('".$text['confirm-delete']."')) { list_action_set('delete'); list_form_submit('form_list'); } else { this.blur(); return false; }"]);
 	}
 	if (permission_exists('bridge_all')) {
@@ -183,9 +183,11 @@
 
 	echo "<table class='list'>\n";
 	echo "<tr class='list-header'>\n";
-	echo "	<th class='checkbox'>\n";
-	echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' value='' onclick='list_all_toggle();'>\n";
-	echo "	</th>\n";
+	if (permission_exists('bridge_add') || permission_exists('bridge_edit') || permission_exists('bridge_delete')) {
+		echo "	<th class='checkbox'>\n";
+		echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' onclick='list_all_toggle();' ".($bridges ?: "style='visibility: hidden;'").">\n";
+		echo "	</th>\n";
+	}
 	if ($_GET['show'] == "all" && permission_exists('bridge_all')) {
 		echo th_order_by('domain_name', $text['label-domain'], $order_by, $order);
 	}
@@ -205,10 +207,12 @@
 				$list_row_url = "bridge_edit.php?id=".urlencode($row['bridge_uuid']);
 			}
 			echo "<tr class='list-row' href='".$list_row_url."'>\n";
-			echo "	<td class='checkbox'>\n";
-			echo "		<input type='checkbox' name='bridges[$x][checked]' id='checkbox_".$x."' value='true' onclick=\"if (!this.checked) { document.getElementById('checkbox_all').checked = false; }\">\n";
-			echo "		<input type='hidden' name='bridges[$x][uuid]' value='".escape($row['bridge_uuid'])."' />\n";
-			echo "	</td>\n";
+			if (permission_exists('bridge_add') || permission_exists('bridge_edit') || permission_exists('bridge_delete')) {
+				echo "	<td class='checkbox'>\n";
+				echo "		<input type='checkbox' name='bridges[$x][checked]' id='checkbox_".$x."' value='true' onclick=\"if (!this.checked) { document.getElementById('checkbox_all').checked = false; }\">\n";
+				echo "		<input type='hidden' name='bridges[$x][uuid]' value='".escape($row['bridge_uuid'])."' />\n";
+				echo "	</td>\n";
+			}
 			if ($_GET['show'] == "all" && permission_exists('bridge_all')) {
 				echo "	<td>".escape($_SESSION['domains'][$row['domain_uuid']]['domain_name'])."</td>\n";
 			}
@@ -221,8 +225,14 @@
 			}
 			echo "	</td>\n";
 			echo "	<td>".escape($row['bridge_destination'])."</td>\n";
-			echo "	<td class='no-link center'>";
-			echo button::create(['type'=>'submit','class'=>'link','label'=>$text['label-'.$row['bridge_enabled']],'title'=>$text['button-toggle'],'onclick'=>"list_self_check('checkbox_".$x."'); list_action_set('toggle'); list_form_submit('form_list')"]);
+			if (permission_exists('bridge_edit')) {
+				echo "	<td class='no-link center'>";
+				echo button::create(['type'=>'submit','class'=>'link','label'=>$text['label-'.$row['bridge_enabled']],'title'=>$text['button-toggle'],'onclick'=>"list_self_check('checkbox_".$x."'); list_action_set('toggle'); list_form_submit('form_list')"]);
+			}
+			else {
+				echo "	<td class='center'>";
+				echo $text['label-'.$row['bridge_enabled']];
+			}
 			echo "	</td>\n";
 			echo "	<td class='description overflow hide-sm-dn'>".escape($row['bridge_description'])."</td>\n";
 			if (permission_exists('bridge_edit') && $_SESSION['theme']['list_row_edit_button']['boolean'] == 'true') {
diff --git a/app/call_block/call_block.php b/app/call_block/call_block.php
index 4abcefad0b..19051e6b31 100644
--- a/app/call_block/call_block.php
+++ b/app/call_block/call_block.php
@@ -138,13 +138,13 @@
 	if (permission_exists('call_block_add')) {
 		echo button::create(['type'=>'button','label'=>$text['button-add'],'icon'=>$_SESSION['theme']['button_icon_add'],'link'=>'call_block_edit.php']);
 	}
-	if (permission_exists('call_block_add')) {
+	if (permission_exists('call_block_add') && $result) {
 		echo button::create(['type'=>'button','label'=>$text['button-copy'],'icon'=>$_SESSION['theme']['button_icon_copy'],'onclick'=>"if (confirm('".$text['confirm-copy']."')) { list_action_set('copy'); list_form_submit('form_list'); } else { this.blur(); return false; }"]);
 	}
-	if (permission_exists('call_block_edit')) {
+	if (permission_exists('call_block_edit') && $result) {
 		echo button::create(['type'=>'button','label'=>$text['button-toggle'],'icon'=>$_SESSION['theme']['button_icon_toggle'],'onclick'=>"if (confirm('".$text['confirm-toggle']."')) { list_action_set('toggle'); list_form_submit('form_list'); } else { this.blur(); return false; }"]);
 	}
-	if (permission_exists('call_block_delete')) {
+	if (permission_exists('call_block_delete') && $result) {
 		echo button::create(['type'=>'button','label'=>$text['button-delete'],'icon'=>$_SESSION['theme']['button_icon_delete'],'onclick'=>"if (confirm('".$text['confirm-delete']."')) { list_action_set('delete'); list_form_submit('form_list'); } else { this.blur(); return false; }"]);
 	}
 	echo "<form id='form_search' class='inline' method='get'>\n";
@@ -166,9 +166,11 @@
 
 	echo "<table class='list'>\n";
 	echo "<tr class='list-header'>\n";
-	echo "	<th class='checkbox'>\n";
-	echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' value='' onclick='list_all_toggle();'>\n";
-	echo "	</th>\n";
+	if (permission_exists('call_block_add') || permission_exists('call_block_edit') || permission_exists('call_block_delete')) {
+		echo "	<th class='checkbox'>\n";
+		echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' onclick='list_all_toggle();' ".($result ?: "style='visibility: hidden;'").">\n";
+		echo "	</th>\n";
+	}
 	echo th_order_by('call_block_number', $text['label-number'], $order_by, $order);
 	echo th_order_by('call_block_name', $text['label-name'], $order_by, $order);
 	echo th_order_by('call_block_count', $text['label-count'], $order_by, $order, '', "class='center'");
@@ -188,10 +190,12 @@
 				$list_row_url = "call_block_edit.php?id=".urlencode($row['call_block_uuid']);
 			}
 			echo "<tr class='list-row' href='".$list_row_url."'>\n";
-			echo "	<td class='checkbox'>\n";
-			echo "		<input type='checkbox' name='call_blocks[".$x."][checked]' id='checkbox_".$x."' value='true' onclick=\"if (!this.checked) { document.getElementById('checkbox_all').checked = false; }\">\n";
-			echo "		<input type='hidden' name='call_blocks[".$x."][uuid]' value='".escape($row['call_block_uuid'])."' />\n";
-			echo "	</td>\n";
+			if (permission_exists('call_block_add') || permission_exists('call_block_edit') || permission_exists('call_block_delete')) {
+				echo "	<td class='checkbox'>\n";
+				echo "		<input type='checkbox' name='call_blocks[".$x."][checked]' id='checkbox_".$x."' value='true' onclick=\"if (!this.checked) { document.getElementById('checkbox_all').checked = false; }\">\n";
+				echo "		<input type='hidden' name='call_blocks[".$x."][uuid]' value='".escape($row['call_block_uuid'])."' />\n";
+				echo "	</td>\n";
+			}
 			echo "	<td>";
 			if (permission_exists('call_block_edit')) {
 				echo "<a href='".$list_row_url."'>".escape($row['call_block_number'])."</a>";
@@ -203,8 +207,14 @@
 			echo "	<td>".escape($row['call_block_name'])."</td>\n";
 			echo "	<td class='center'>".escape($row['call_block_count'])."</td>\n";
 			echo "	<td>".escape($row['call_block_action'])."</td>\n";
-			echo "	<td class='no-link center'>";
-			echo button::create(['type'=>'submit','class'=>'link','label'=>$text['label-'.$row['call_block_enabled']],'title'=>$text['button-toggle'],'onclick'=>"list_self_check('checkbox_".$x."'); list_action_set('toggle'); list_form_submit('form_list')"]);
+			if (permission_exists('call_block_edit')) {
+				echo "	<td class='no-link center'>";
+				echo button::create(['type'=>'submit','class'=>'link','label'=>$text['label-'.$row['call_block_enabled']],'title'=>$text['button-toggle'],'onclick'=>"list_self_check('checkbox_".$x."'); list_action_set('toggle'); list_form_submit('form_list')"]);
+			}
+			else {
+				echo "	<td class='center'>";
+				echo $text['label-'.$row['call_block_enabled']];
+			}
 			echo "	</td>\n";
 			echo "	<td>".date("j M Y H:i:s".(defined('TIME_24HR') && TIME_24HR == 1 ? 'a' : null), $row['date_added'])."</td>\n";
 			echo "	<td class='description overflow hide-md-dn'>".escape($row['call_block_description'])."</td>\n";
diff --git a/app/call_broadcast/call_broadcast.php b/app/call_broadcast/call_broadcast.php
index 8c7a3c6286..4ed2fdc345 100644
--- a/app/call_broadcast/call_broadcast.php
+++ b/app/call_broadcast/call_broadcast.php
@@ -153,9 +153,11 @@
 
 	echo "<table class='list'>\n";
 	echo "<tr class='list-header'>\n";
-	echo "	<th class='checkbox'>\n";
-	echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' value='' onclick='list_all_toggle();'>\n";
-	echo "	</th>\n";
+	if (permission_exists('call_broadcast_add') || permission_exists('call_broadcast_delete')) {
+		echo "	<th class='checkbox'>\n";
+		echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' onclick='list_all_toggle();' ".($result ?: "style='visibility: hidden;'").">\n";
+		echo "	</th>\n";
+	}
 	echo th_order_by('broadcast_name', $text['label-name'], $order_by, $order);
 	echo th_order_by('broadcast_concurrent_limit', $text['label-concurrent-limit'], $order_by, $order);
 	echo th_order_by('broadcast_description', $text['label-description'], $order_by, $order);
@@ -171,10 +173,12 @@
 				$list_row_url = "call_broadcast_edit.php?id=".urlencode($row['call_broadcast_uuid']);
 			}
 			echo "<tr class='list-row' href='".$list_row_url."'>\n";
-			echo "	<td class='checkbox'>\n";
-			echo "		<input type='checkbox' name='call_broadcasts[$x][checked]' id='checkbox_".$x."' value='true' onclick=\"if (!this.checked) { document.getElementById('checkbox_all').checked = false; }\">\n";
-			echo "		<input type='hidden' name='call_broadcasts[$x][uuid]' value='".escape($row['call_broadcast_uuid'])."' />\n";
-			echo "	</td>\n";
+			if (permission_exists('call_broadcast_add') || permission_exists('call_broadcast_delete')) {
+				echo "	<td class='checkbox'>\n";
+				echo "		<input type='checkbox' name='call_broadcasts[$x][checked]' id='checkbox_".$x."' value='true' onclick=\"if (!this.checked) { document.getElementById('checkbox_all').checked = false; }\">\n";
+				echo "		<input type='hidden' name='call_broadcasts[$x][uuid]' value='".escape($row['call_broadcast_uuid'])."' />\n";
+				echo "	</td>\n";
+			}
 			echo "	<td>";
 			if (permission_exists('call_broadcast_edit')) {
 				echo "<a href='".$list_row_url."'>".escape($row['broadcast_name'])."</a>";
diff --git a/app/xml_cdr/xml_cdr.php b/app/xml_cdr/xml_cdr.php
index 36eca2f0cc..19d0806e75 100644
--- a/app/xml_cdr/xml_cdr.php
+++ b/app/xml_cdr/xml_cdr.php
@@ -478,9 +478,9 @@
 
 	echo "<table class='list'>\n";
 	echo "<tr class='list-header'>\n";
-	if (permission_exists('xml_cdr_delete') && $result_count > 0) {
+	if (permission_exists('xml_cdr_delete')) {
 		echo "	<th class='checkbox'>\n";
-		echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' value='' onclick='list_all_toggle();'>\n";
+		echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' onclick='list_all_toggle();' ".($result ?: "style='visibility: hidden;'").">\n";
 		echo "	</th>\n";
 		$col_count++;
 	}
diff --git a/resources/classes/button.php b/resources/classes/button.php
index 3d7c893d2c..baaed113f2 100644
--- a/resources/classes/button.php
+++ b/resources/classes/button.php
@@ -43,8 +43,9 @@ if (!class_exists('button')) {
 					$button .= "title=\"".($array['title'] ? $array['title'] : $array['label'])."\" ";
 				}
 				$button .= $array['onclick'] ? "onclick=\"".$array['onclick']."\" " : null;
-				$button .= "class='btn btn-".($array['class'] ? $array['class'] : 'default')."' ";
+				$button .= "class='btn btn-".($array['class'] ? $array['class'] : 'default')." ".($array['disabled'] ? 'disabled' : null)."' ";
 				$button .= "style='margin-left: 2px; margin-right: 2px; ".($array['style'] ? $array['style'] : null)."' ";
+				$button .= $array['disabled'] ? "disabled='disabled' " : null;
 				$button .= ">";
 			//icon
 				if ($array['icon'] && (
@@ -77,7 +78,12 @@ if (!class_exists('button')) {
 				$button .= "</button>";
 			//link
 				if ($array['link']) {
-					$button = "<a href='".$array['link']."' target=\"".($array['target'] ? $array['target'] : '_self')."\">".$button."</a>";
+					$anchor = "<a ";
+					$anchor .= "href='".$array['link']."' ";
+					$anchor .= "target=\"".($array['target'] ? $array['target'] : '_self')."\" ";
+					$anchor .= ($array['disabled'] ? "class='disabled' onclick='return false;'" : null)." ";
+					$anchor .= ">";
+					$button = $anchor.$button."</a>";
 				}
 			return $button;
 			unset($button);
@@ -87,9 +93,10 @@ if (!class_exists('button')) {
 }
 
 /*
+
 //usage
 
-	echo button::create(['type'=>'button','label'=>$text['button-label'],'icon'=>'icon','name'=>'btn','id'=>'btn','value'=>'value','link'=>'url','target'=>'_blank','onclick'=>'javascript','class'=>'name','style'=>'css','title'=>$text['button-label'],'collapse'=>'class']);
+	echo button::create(['type'=>'button','label'=>$text['button-label'],'icon'=>'icon','name'=>'btn','id'=>'btn','value'=>'value','link'=>'url','target'=>'_blank','onclick'=>'javascript','class'=>'name','style'=>'css','title'=>$text['button-label'],'collapse'=>'class','disabled'=>false]);
 
 	echo button::create([
 		'type'=>'button',
@@ -104,9 +111,11 @@ if (!class_exists('button')) {
 		'class'=>'name',
 		'style'=>'css',
 		'title'=>$text['button-label'],
-		'collapse'=>'class'
+		'collapse'=>'class',
+		'disabled'=>false
 		]);
 
+
 //options
 
 	type		'button' (default) | 'submit' | 'link'
@@ -119,6 +128,8 @@ if (!class_exists('button')) {
 	style		css style[s]
 	title		tooltip text (if not set, defaults to value of label)
 	collapse	overide the default hide class ('hide-md-dn')
+	disabled	boolean true/false, or a value that evaluates to a boolean
+
 
 //notes
 
@@ -129,6 +140,52 @@ if (!class_exists('button')) {
 
 	3) setting either collapse (instance or default) to false (boolean) will cause the button label to always be visible
 
+
+//example: enable/disable buttons with javascript
+
+	//javascript
+		onclick='button_enable('disabled_button');
+	//button
+		echo button::create(['type'=>'button', ... ,'id'=>'disabled_button','disabled'=>true]);
+
+	//javascript
+		onclick='button_disable('enabled_button');
+
+	//button
+		echo button::create(['type'=>'button', ... ,'id'=>'enabled_button']);
+
+
+	//enable button class button
+		echo "<script>\n";
+		echo "	function button_enable(button_id) {\n";
+		echo "		button = document.getElementById(button_id);\n";
+		echo "		button.disabled = false;\n";
+		echo "		button.classList.remove('disabled');\n";
+		echo "		if (button.parentElement.nodeName == 'A') {\n";
+		echo "			anchor = button.parentElement;\n";
+		echo "			anchor.classList.remove('disabled');\n";
+		echo "			anchor.setAttribute('onclick','');\n";
+		echo "		}\n";
+		echo "	}\n";
+		echo "</script>\n";
+
+	//disable button class button
+		echo "<script>\n";
+		echo "	function button_disable(button_id) {\n";
+		echo "		button = document.getElementById(button_id);\n";
+		echo "		button.disabled = true;\n";
+		echo "		button.classList.add('disabled');\n";
+		echo "		if (button.parentElement.nodeName == 'A') {\n";
+		echo "			anchor = button.parentElement;\n";
+		echo "			anchor.classList.add('disabled');\n";
+		echo "			anchor.setAttribute('onclick','return false;');\n";
+		echo "		}\n";
+		echo "	}\n";
+		echo "</script>\n";
+
+	//note: the javascript functions above are already contained in the template.php file.
+
+
 */
 
 ?>
\ No newline at end of file
diff --git a/themes/default/css.php b/themes/default/css.php
index 3ba5d18e63..dad696a3c9 100644
--- a/themes/default/css.php
+++ b/themes/default/css.php
@@ -712,6 +712,12 @@ $default_login = ($_REQUEST['login'] == 'default') ? true : false;
 			}
 	<?php } ?>
 
+	a.disabled,
+	button.btn.disabled {
+		outline: none; /* hides the dotted outline of the anchor tag on focus/active */
+		cursor: default;
+		}
+
 /* BREAKPOINTS ****************************************************************/
 
 	/* screens = extra small */
diff --git a/themes/default/template.php b/themes/default/template.php
index 1c9d596c8f..e0e5bbb88b 100644
--- a/themes/default/template.php
+++ b/themes/default/template.php
@@ -387,6 +387,30 @@ echo "<script language='JavaScript' type='text/javascript' src='<!--{project_pat
 			}
 		}
 
+	//enable button class button
+		function button_enable(button_id) {
+			button = document.getElementById(button_id);
+			button.disabled = false;
+			button.classList.remove('disabled');
+			if (button.parentElement.nodeName == 'A') {
+				anchor = button.parentElement;
+				anchor.classList.remove('disabled');
+				anchor.setAttribute('onclick','');
+			}
+		}
+
+	//disable button class button
+		function button_disable(button_id) {
+			button = document.getElementById(button_id);
+			button.disabled = true;
+			button.classList.add('disabled');
+			if (button.parentElement.nodeName == 'A') {
+				anchor = button.parentElement;
+				anchor.classList.add('disabled');
+				anchor.setAttribute('onclick','return false;');
+			}
+		}
+
 	//list functions
 		function list_all_toggle() {
 			var inputs = document.getElementsByTagName('input');