javascript - Build element(s) if less than 9 exist -

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i'm building portfolio of site. want show off 3x3 grid of work. i'm trying write javascript code render gray blocks placeholders total of squares (including shots) always 9.

the goal:

enter image description here

my code:

function inventblank() {      // define variables     var shot = document.getelementbyid('shot'),         = document.getelementbyid('a'),         div = document.createelement('div');      // insertafter function     function insertafter(referencenode, newnode) {         referencenode.parentnode.insertbefore(newnode, referencenode.nextsibling);     }      // if existing shots less 9...     if (shot < 9) {         // render gray boxes until 9         (var = 0; < 10; i++) {             var div = document.createelement('div');             div.classname = "shot";             div.insertafter(a, div);             // insert new element "div" after "a"         }     } }  inventblank(); // call anonymous function

i try use this, console says it's anonymous function!

here jsfiddle

basically, it's supposed render gray blocks after span. accomplish generating div name of div.

i'm pretty sure loop invalid! :(

there fix , can starting point

http://jsfiddle.net/inferon/bzvq6/

<!doctype html>  <html lang="en" xmlns="http://www.w3.org/1999/xhtml"> <head>     <meta charset="utf-8" />     <title></title>      <style>         .wrapper {             width: 960px;             margin: 0 auto;         }          img, .shot {             width: 292px;             height: 219px;             float: left;             margin: 10px;             background: #eee;         }          .clearfix{             clear:both;          }      </style> </head> <body>     <div class="wrapper">         <section class="main" id="main">          </section>     </div>      <script>         var shot = function (src) {             this.src = src;         };          var shots = [];          shots.push(new shot('https://d13yacurqjgara.cloudfront.net/users/332776/screenshots/1567549/weather-dribbble.jpg'));         shots.push(new shot('https://d13yacurqjgara.cloudfront.net/users/332776/screenshots/1588565/safari-yosemite-dribbble.jpg'));         shots.push(new shot('https://d13yacurqjgara.cloudfront.net/users/332776/screenshots/1573950/browsers.jpg'));         shots.push(new shot('https://d13yacurqjgara.cloudfront.net/users/332776/screenshots/1546946/blackclock-dribbble.jpg'));         shots.push(new shot(''));         shots.push(new shot(''));         shots.push(new shot(''));         shots.push(new shot(''));         shots.push(new shot(''));          function addshot(target, source) {             var div = document.createelement('div');             div.setattribute('class', 'shot');             var img = document.createelement('img');             img.setattribute('src', source.src);             div.appendchild(img);             target.appendchild(div);         }         function appendclear(target) {              var div = document.createelement('div');             div.setattribute('class', 'clearfix');             target.appendchild(div);         }          var target = document.getelementbyid('main');           (var = 0; < shots.length ; i++) {             if(i >0 && % 3 == 0){                 appendclear(target);             }             addshot(target, shots[i]);         }       </script> </body> </html>

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