<https://w3schools.invisionzone.com/topic/53171-problem-with-blur/#comment-292867>
<http://schema.org/text>
"ohh, hhh, so why the blur() method not working in the first code? \nfrom what i understand the methos suppose to disapear the new window, but its dosent work...? \n"
<https://w3schools.invisionzone.com/topic/53171-problem-with-blur/?tab=comments#comment-293006>