var hoverElem = null; $(document).mouseover(function(e){ var x = e.clientX, y = e.clientY, elementOnMouseOver = document.elementFromPoint(x, y); hoverElem = $(elementOnMouseOver); }); $(document).keydown(function(e){ console.log(e); if(e.which == 38){ var ele = hoverElem; if(ele.parent().attr("class") == "post op" || ele.attr("class") == "body" || ele.attr("class") == "post-image" || ele.parent().attr("class") == "body" || ele.parent().attr("class") == "body" || (ele.parent().attr("id")!= null && ele.parent().attr("id").match("^thread") != null) || (ele.parent().attr("for")!= null && ele.parent().attr("id").match("delete") != null)){ var thread = (ele.parent().attr("class") == "post op") ? ele.parent().parent() : ele.parent(); thread = (thread.attr("class") == "post reply") ? thread.parent() : thread; thread = (thread.attr("class") == "body") ? thread.parent().parent() : thread; thread = (ele.attr("class") == "post-image") ? thread.parent().parent().parent().parent() : thread; if(thread.attr("id") == null) thread = ele.parent().parent().parent().parent(); //op image if(thread.prev().attr("id") != null){ if(thread.prev().attr("id").match("^thread")){ window.location.href = window.location.protocol+"//"+window.location.host+window.location.pathname+"#"+thread.prev().attr("id"); } } } }else if(e.which == 40){ var ele = hoverElem; if(ele.parent().attr("class") == "post op" || ele.attr("class") == "body" || ele.attr("class") == "post-image" || ele.parent().attr("class") == "body" || ele.parent().attr("class") == "body" || (ele.parent().attr("id")!= null && ele.parent().attr("id").match("^thread") != null) || (ele.parent().attr("for")!= null && ele.parent().attr("id").match("delete") != null)){ var thread = (ele.parent().attr("class") == "post op") ? ele.parent().parent() : ele.parent(); thread = (thread.attr("class") == "post reply") ? thread.parent() : thread; thread = (thread.attr("class") == "body") ? thread.parent().parent() : thread; thread = (ele.attr("class") == "post-image") ? thread.parent().parent().parent().parent() : thread; if(thread.attr("id") == null) thread = ele.parent().parent().parent().parent(); //op image if(thread.next().attr("id") != null){ if(thread.next().attr("id").match("^thread")){ window.location.href = window.location.protocol+"//"+window.location.host+window.location.pathname+"#"+thread.next().attr("id"); } } } } });