function clickOrigin(e){
var target = e.target;
var tag = [];
tag.tagType = target.tagName.toLowerCase();
tag.tagClass = target.className.split(' ');
tag.id = target.id;
tag.parent = target.parentNode.tagName.toLowerCase();
return tag;
}
var tagsToIdentify = ['img','a'];
document.body.onclick = function(e){
elem = clickOrigin(e);
for (i=0;i<tagsToIdentify.length;i++){
if (elem.tagType == tagsToIdentify[i] && elem.parent == 'a'){
console.log('You've clicked a monitored tag (' + elem.tagType + ', in this case and one inside an "a" element, no less!).');
return false; // or do something else.
}
else if (elem.tagType == tagsToIdentify[i]){
console.log('You've clicked a monitored tag (' + elem.tagType + ', in this case).');
return false; // or do something else.
}
}
};