function context_off_by_tag(tag_name){var tags = null;
if (document.all) {tags = document.all.tags(tag_name);} else if(document.getElementsByTagName) {tags = document.getElementsByTagName(tag_name);}
var i=0;var len=0;if (tags) {len = tags.length;for (i=0; i<len; i++) {tags[i].oncontextmenu = function(){return false;};}}
}
function protect_on_load() {context_off_by_tag('img');}