javascript - changing plus sign to minus when collapsed while keeping link -

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i'm pretty new jquery, admit don't know i'm doing. top menu item text , not it's own link, has dropdown. i'm trying add plus , minus sign before text toggles while keeping original content clickable.

html

<div class="menu-clinical-materials"> <ul>     <li class="menu-item-has-children"><a>clinical studies &amp; articles</a>                    <ul class="sub-menu" style="display: none;">             <li><a target="_blank" href="">link 1</a></li>             <li><a target="_blank" href="">link 2</a></li>             <li><a target="_blank" href="">link 3</a></li>             <li><a target="_blank" href="">link 4</a></li>             <li><a target="_blank" href="">link 5</a></li>         </ul>     </li>     <li class="menu-item-has-children"><a>counseling sheets</a>                  <ul class="sub-menu" style="display: none;">             <li><a target="_blank" href="">link 1</a></li>             <li><a target="_blank" href="">link 2</a></li>             <li><a target="_blank" href="">link 3</a></li>             <li><a target="_blank" href="">link 4</a></li>             <li><a target="_blank" href="">link 5</a></li>         </ul>     </li> </ul>

js

jquery.noconflict(); jquery(document).ready(function () {     jquery(".menu-item-has-children:has(ul)").prepend("<span class=\"expander\">+</span>");     jquery(".expander").click(function () {         jquery(this).html(jquery(this).html() == "+" ? "-" : "+");         jquery(this).toggleclass("expanded").siblings("ul").slidetoggle();         return false;     }).eq(0).addclass("expanded").end().slice(1).siblings("ul").hide(); });

so want "clinical studies & articles" clickable, not +/- sign.

here's have far

edit

i able work way wanted using different method. i'd still know how .click function instead of toggle though. i'd appreciate it. here's fiddle workaround fiddle

here changed js

//<![cdata[ jquery.noconflict(); jquery(document).ready(function () { jquery(".menu-item-has-children:has(ul)").prepend("<span class=\"plus-minus\">+</span>"); jquery(".sub-menu").addclass('expander').hide(); jquery('.menu-item-has-children').parent().toggle(function () {     jquery(".plus-minus").text("-");     jquery(".expander").slidedown(); }, function () {     jquery(".plus-minus").text("+");     jquery(".expander").slideup(); }) });

improved demo. use event.stoppropagation() prevent click on inner links bubble , close whole block.

//<![cdata[ jquery.noconflict(); jquery(document).ready(function () {     jquery(".menu-item-has-children:has(ul)").prepend("<span class=\"expander\">+</span>");      jquery(".menu-item-has-children").click(function () {         buttontext = jquery(this).children('.expander').html() == "+" ? "-" : "+";         jquery(this).children('.expander').html(buttontext);         jquery(this).children('.expander')             .toggleclass("expanded").siblings("ul").slidetoggle();         return false;     }).eq(0).slice(1).siblings("ul").hide(); });  //prevent close on click of inner links. jquery(".sub-menu > li").click(function (e) {     e.stoppropagation(); });  //]]>

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