//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) { while (t.substr(t.length-1,1)==' ') t=t.substr(0,t.length-1) while (t.substr(0,1)==' ') t=t.substr(1) if (t) window.open('http://www.dictivo.com/'+escape(t), 'dict', 'width=700,height=500,resizable=1,menubar=0,scrollbars=1,status=0,titlebar=1,toolbar=0,location=0,personalbar=0'); } } status='Click a word to define it with Dictivo' document.ondblclick=dictionary //works for IE only. For NS add