css - jquery and creating styles, how to check if the style already exists -


hi people have looked around cant seem find answer i'm looking for.

i have search page makes ajax calls, returns json data creates style based on returned data , appends section of dom. creation of styles working ok, if new search made style duplicated , $(#element).slidetoggle() function gets duplicated , slidetoggle opens , closes immedietly.

ypu can see page here: http://www.reelfilmlocations.co.uk/new%20search/fullsearch_jq_keys.php

(use test data hounslow, north london , categories: cemeteries) if same search made twice styles results gets duplicated, , slide toggle behaviour duplicated.)

my question how check if style in existence.

the script creates style follows:

function makecss(id){         var myurl = 'getboroughinfo.php';         $.ajax({             url: myurl,             type: 'post',             data: 'myid='+id,             datatype: 'json',             error: function(xhr, statustext, errorthrown){                 // work out error , display appropriate message             },             success: function(mydata){                 var items = mydata.boroughs[0];                 //console.log('borough: '+mydata.boroughs);                  $("<style type='text/css'> #link_"+items.borough_id+"{ color:"+items.color+"; font-weight:bold; float:left; margin-left: 10px;  cursor: pointer; padding: 1px; border: 1px solid "+items.color+";} </style>").appendto("head");                 $("<style type='text/css'> #borough_"+items.borough_id+"{ color:"+items.color+"; font-weight:bold; } </style>").appendto("head");                 $("<style type='text/css'> #searchhead_"+items.borough_id+"{ color:#000000; font-weight:bold; background-color:"+items.color+"; opacity: 1.0; cursor: pointer;} </style>").appendto("head");                 //apply opacity                 //$('#borough_'+items.borough_id).css({});                 $('#borough_links').append('<div id="link_'+items.borough_id+'">'+items.borough_name+'</div>');                 $('#results').append('<div id="searchhead_'+items.borough_id+'">'+items.borough_name+'</div>');                 $('#results').append('<div id="borough_'+items.borough_id+'"></div>');                 $('#link_'+items.borough_id).live('click', function(){                     $('#borough_'+items.borough_id).slidetoggle('slow', function() {                         // animation complete.                     });                 });                 $('#searchhead_'+items.borough_id).live('click', function(){                     $('#borough_'+items.borough_id).slidetoggle('slow', function() {                         // animation complete.                     });                 });             }         });     };

this line of code creates 1 of styles:

$("<style type='text/css'> #link_"+items.borough_id+"{ color:"+items.color+"; font-weight:bold; float:left; margin-left: 10px;  cursor: pointer; padding: 1px; border: 1px solid "+items.color+";} </style>").appendto("head");

so how check if exists in document already???? simple if statement suffice needs think.

you can use :contains selector. e.g:

if($("style:contains('#link_" + items.borough_id + "')").length < 1) {     $("<style type='text/css'> #link_"+items.borough_id+"{ color:"+items.color+"; font-weight:bold; float:left; margin-left: 10px;  cursor: pointer; padding: 1px; border: 1px solid "+items.color+";} </style>").appendto("head");  }

Comments

Post a Comment

Popular posts from this blog

apache - Add omitted ? to URLs -

i working on website cms reads page name of query string, e.g. http://exmaple.com/?pagename . trying create rewrite rule rewrite ? . so, user types in /pagename , taken /?pagename try this: rewriteengine on rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^/?(.*) index.php?$1 [l]
Read more

redirect - bbPress Forum - rewrite to wwww.mysite prohibits login -

i using bbpress installation without wordpress integration. the redirect of rewriteengine @ forum site works: rewriteengine on rewritecond %{http_host} ^forum.mysite.com$ rewriterule (.*)$ http://www.forum.mysite.com/$1 [r=301,l] the problem login pppress. bbpress login not recognize: http://www.forum.mysite/bb-login.php . it redirects to: http://forum.mysite.com/bb-login.php . i tried permalink settings none , name based, same issue. does uses redirect in bbpress or how can eliminate "double" content , redirect permanently www.? i redirected www.forum.mysite.com forum.mysite.com , achieved eliminate "double" content.
Read more

php - How can I stop spam on my custom forum/blog? -

so have custom built forum & blog system of late has been dealing lot of spam. if wordpress use akismet, if different common platform i'm sure i'd find plugin. there kind of static class can download this? using php. i'd still go akismet, if it. uses outside of wordpress, may have pay fee it, depending on use -- check terms , conditions -- it's option , easy implement in php using api. use api key wordpress. com account access. basically, grab whichever php client library takes fancy -- use alex potsides' php5 library -- plug in key, , it's handful of lines of code. here's bare bones of validation straight 1 of live sites: ... if ($akismet) { $akismet->setcommentauthor($name); $akismet->setcommentauthoremail($session->userinfo["email"]); $akismet->setcommentauthorurl(""); $akismet->setcommentcontent($sentence);...
Read more