Fix button for deleting selected rules in NAT pages, fixes #10

src/www/firewall_nat.php

@@ -378,7 +378,7 @@ $main_buttons = array(
 									    </table>
 
 										<div class="container-fluid">
-<input name="del" type="submit" data-toggle="tooltip" data-placement="left" title="<?=gettext("delete selected rules"); ?>" onclick="return confirm('<?=gettext("Do you really want to delete the selected rules?");?>')" class="btn btn-primary" value="Delete selected rules"/>
+<input name="del_x" type="submit" data-toggle="tooltip" data-placement="left" title="<?=gettext("delete selected rules"); ?>" onclick="return confirm('<?=gettext("Do you really want to delete the selected rules?");?>')" class="btn btn-primary" value="Delete selected rules"/>
 										</div>
 									</form>
 

src/www/firewall_nat_1to1.php

@@ -278,7 +278,7 @@ $main_buttons = array(
 						<?php
 													else:
 						?>
-														<button name="del" type="submit" data-toggle="tooltip" data-placement="left" title="<?=gettext("delete selected mappings");?>"
+														<button name="del_x" type="submit" data-toggle="tooltip" data-placement="left" title="<?=gettext("delete selected mappings");?>"
 															onclick="return confirm('<?=gettext("Do you really want to delete the selected mappings?");?>')" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-remove"></span></button>
 						<?php
 													endif;

src/www/firewall_nat_out.php

@@ -471,7 +471,7 @@ include("head.inc");
 <?php
 								else:
 ?>
-									<button onmouseover="fr_insline(<?=$i;?>, true)" onmouseout="fr_insline(<?=$i;?>, false)" name="move_<?=$i;?>" type="submit"  title="<?=gettext("move selected mappings to end");?>" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-arrow-left"></span></button>
+									<button onmouseover="fr_insline(<?=$i;?>, true)" onmouseout="fr_insline(<?=$i;?>, false)" name="move_<?=$i;?>_x" type="submit"  title="<?=gettext("move selected mappings to end");?>" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-arrow-left"></span></button>
 <?php
 								endif;
 ?>
@@ -485,7 +485,7 @@ include("head.inc");
 <?php
 								else:
 ?>
-									<button name="del" type="submit" title="<?=gettext("delete selected mappings");?>" onclick="return confirm('<?=gettext("Do you really want to delete the selected mappings?");?>')" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-remove"></span></button>
+									<button name="del_x" type="submit" title="<?=gettext("delete selected mappings");?>" onclick="return confirm('<?=gettext("Do you really want to delete the selected mappings?");?>')" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-remove"></span></button>
 <?php
 								endif;
 ?>