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- $(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();
- }
- });
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