click a button in JMeter

click a button in JMeter

I need to click an Add button.I have traversed to the page having the
Button,as verified from Response data in View Results Tree. I tried making
a get request (post button click URL)but that didn't work.
Below is the HTML of the Button
<button class="bigbutton ui-button ui-widget ui-state-default
ui-corner-all ui-button-text-only" onclick="var win =
this.ownerDocument.defaultView || this.ownerDocument.parentWindow; if (win
== window) {
window.location.href='?x=KOGI5TeEN-U*JE6roI7oZMd-OfKSr5oQnRTh7tHdN*Bh66LwE2vEHDjxo9WFuOf7Ti2zcBh-IaE';
} ;return false" style="float: right;" role="button"
aria-disabled="false">
Add