Onclick action without onclick event handler

Onclick action without onclick event handler

I try to automate some task, but I don't know how to invoke event that is
used on this span:
<span id="item_mini_111706652_ss_selection" class="item_mini_111706652
miniview rarity1 ss_items ss_group_0 slot_Sworn Sword" style=" "></span>
When I click it, site changes, but I don't know how to invoke that action
with code. Could anyone help me with this? It's invoked on click. So I
tried .click() .onclick() .mouseup() .onmouseup() but noone of them works.
Do you have any idea how could it be invoked or how could I find out?