javascript - Dynamically change css style by class name - 


<p class="typea build1"> build 1 <div class="b">complete</div></p> <p class="typea build2"> build 2 <div class="b">incomplete</div></p> //about 6 or 7 more builds...

i need access style of build# change display...all hidden hava java code creates string/s (ex. "build2" , "build3"). have string saved "tempkey" in java code.

then in javascript script:

var tempkey = "<%=tempkey%>"; document.getelementsbyclassname(tempkey).style.display = "block !important";

i have tried adding class "active" , had class have same style (block !important), plus number of different ways solve this. seems can't access element right using java string in javascript function.

edit:

i accessing right element, won't let me overwrite display style none block. reason !important not working...

remember selector returns array need supply index [0].

var = 3;  var tempkey = "build" + i;  var el = document.getelementsbyclassname(tempkey)[0];  el.style.backgroundcolor = "#ffcc00";
ul.type-list {    list-style-type:none;    padding:0;  }    ul.type-list li.typea {    border-bottom: 2px solid #99aacc;  }  ul.type-list li span.b {    display:inline-block;    width: 100px;    float:right;  }
<ul class='type-list'>    <li class="typea build1">build 1      <span class="b">complete</span>    </li>    <li class="typea build2">build 2      <span class="b">incomplete</span>    </li>    <li class="typea build3">build 3      <span class="b">build3</span>    </li>    <li class="typea build4">build 4      <span class="b">build4</span>    </li>  </ul>


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