I cannot click on the button help

[Lacivert83]

Hi

I cannot click on the button whose code I gave below.

<li role="presentation" id="toolactions_SB_X-tbb" ctype="toolbarbutton"><a role="button" id="toolactions_SB_X-tbb_anchor" href="javascript:setClickElementId("toolactions_SB_X-tbb");sendEvent("click","toolactions_SB_X-tbb","")" onkeydown="itemAKey(event,this)" title="X" onfocus="appendClass(this,'onhover')" tabindex="-1" onblur="removeClass(this,'onhover')" eventtype="SB_X" class="on"><img role="button" tabindex="-1" id="toolactions_SB_X-tbb_image" src="nav_icon_selectOwner.gif" alt="X" draggable="false"></a></li>