//don't forget to add function dictionary() { if (navigator.appName!='Microsoft Internet Explorer') { var t = document.getSelection(); od(t); } else { var t = document.selection.createRange(); if(document.selection.type == 'Text' && t.text>'') { document.selection.empty(); od(t.text);} } function od(t) { text = text.replace(/[́!.:?,;"]/g, '').replace(/[\n\t ]/g, ' ').replace(/^\s+|\s+$/, ''); if (t) window.open('http://pt.thefreedictionary.com/'+encodeURIComponent(t), 'dict', 'width=700,height=500,resizable=1,menubar=1,scrollbars=1,status=1,titlebar=1,toolbar=1,location=1,personalbar=1'); } }; status='double-click any word - get its instant definition in the dictionary.'; document.ondblclick=dictionary; //works for IE only. For other browsers add