支持Firefox和IE的文本复制Javascript

1. functioncopyToClipboard(text){
2. if(text==null||text=='undefined')
3. return;
5. //window.clipboardData.setData("Text",text);
6. if(window.clipboardData){
7. window.clipboardData.setData("Text",text);
8. }
9. elseif(window.netscape){
10. netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
11. varclip=Components.classes['@mozilla.org/widget/clipboard;1']
12. .createInstance(Components.interfaces.nsIClipboard);
13. if(!clip)return;
14. vartrans=Components.classes['@mozilla.org/widget/transferable;1']
15. .createInstance(Components.interfaces.nsITransferable);
16. if(!trans)return;
17. trans.addDataFlavor('text/unicode');
19. varstr=newObject();
20. varlen=newObject();
22. varstr=Components.classes["@mozilla.org/supports-string;1"]
23. .createInstance(Components.interfaces.nsISupportsString);
25. varcopytext=text;
27. str.data=copytext;
29. trans.setTransferData("text/unicode",str,copytext.length*2);
31. varclipid=Components.interfaces.nsIClipboard;
33. if(!clip)return;
35. clip.setData(trans,null,clipid.kGlobalClipboard);
37. }else{
38. window.alert("不支持该浏览器的复制功能，请手动复制");
    
39. return;
    
40. }
    
41. window.alert("已复制成功，请直接粘贴$codeFormat");
42. }