//don't forget to add function dictionary() { if (navigator.appName == "Netscape") { t = document.getSelection(); opennewdictwin(t); } else { t = document.selection.createRange(); if(document.selection.type == 'Text' && t.text != '') { document.selection.empty(); opennewdictwin(t.text); } } } function opennewdictwin(text) { while (text.substr(text.length-1,1)==' ') text=text.substr(0,text.length-1) while (text.substr(0,1)==' ') text=text.substr(1) if (text > '') { var newwin = window.open('http://www.m-w.com/cgi-bin/dictionary?book=Dictionary&va='+escape(text), 'dictionary', 'width=760,height=500,resizable=yes,menubar=no,scrollbars=yes,status=no,titlebar=yes,toolbar=no,location=no,personalbar=no'); } } status='double-click any word - get its instant definition in the dictionary.' document.ondblclick=dictionary //works for IE only. For NS add