~~~ $(document).keydown(function(e){ var keyEvent; if(e.keyCode==8){ var d=e.srcElement||e.target; if(d.tagName.toUpperCase()=='INPUT'||d.tagName.toUpperCase()=='TEXTAREA'){ keyEvent=d.readOnly||d.disabled; }else{ keyEvent=true; } }else{ keyEvent=false; } if(keyEvent){ e.preventDefault(); } }); ~~~