detect click on link in all places javascript

1function clickOrigin(e){
2    var target = e.target;
3    var tag = [];
4    tag.tagType = target.tagName.toLowerCase();
5    tag.tagClass = target.className.split(' ');
6    tag.id = target.id;
7    tag.parent = target.parentNode.tagName.toLowerCase();
8
9    return tag;
10}
11
12var tagsToIdentify = ['img','a'];
13
14document.body.onclick = function(e){
15    elem = clickOrigin(e);
16
17    for (i=0;i<tagsToIdentify.length;i++){
18        if (elem.tagType == tagsToIdentify[i] && elem.parent == 'a'){
19            console.log('You\'ve clicked a monitored tag (' + elem.tagType + ', in this case and one inside an "a" element, no less!).');
20            return false; // or do something else.
21        }
22        else if (elem.tagType == tagsToIdentify[i]){
23            console.log('You\'ve clicked a monitored tag (' + elem.tagType + ', in this case).');
24            return false; // or do something else.
25        }
26    }
27};
28