public/ckeditor/4.4dev/plugins/clipboard/plugin.js
function execIECommand( command ) {
			var doc = editor.document,
				body = doc.getBody(),
				enabled = false,
				onExec = function() {
					enabled = true;
				};

			// The following seems to be the only reliable way to detect that
			// clipboard commands are enabled in IE. It will fire the
			// onpaste/oncut/oncopy events only if the security settings allowed
			// the command to execute.
			body.on( command, onExec );

			// IE7: document.execCommand has problem to paste into positioned element.
			( CKEDITOR.env.version > 7 ? doc.$ : doc.$.selection.createRange() )[ 'execCommand' ]( command );

			body.removeListener( command, onExec );

			return enabled;
		}
function execIECommand( command ) {
			var doc = editor.document,
				body = doc.getBody(),
				enabled = false,
				onExec = function() {
					enabled = true;
				};

			// The following seems to be the only reliable way to detect that
			// clipboard commands are enabled in IE. It will fire the
			// onpaste/oncut/oncopy events only if the security settings allowed
			// the command to execute.
			body.on( command, onExec );

			// IE7: document.execCommand has problem to paste into positioned element.
			( CKEDITOR.env.version > 7 ? doc.$ : doc.$.selection.createRange() )[ 'execCommand' ]( command );

			body.removeListener( command, onExec );

			return enabled;
		}
function execIECommand ( command ) { var doc = editor . document , body = doc . getBody ( ) , enabled = false , onExec = function ( ) { enabled = true ; } ; // The following seems to be the only reliable way to detect that
 // clipboard commands are enabled in IE. It will fire the
 // onpaste/oncut/oncopy events only if the security settings allowed
 // the command to execute.
 body . on ( command , onExec ) ; // IE7: document.execCommand has problem to paste into positioned element.
 ( CKEDITOR . env . version > 7 ? doc . $ : doc . $ . selection . createRange ( ) ) [ 'execCommand' ] ( command ) ; body . removeListener ( command , onExec ) ; return enabled ; }
Tries to execute any of the paste, cut or copy commands in IE. Returns a boolean indicating that the operation succeeded. @param {String} command *LOWER CASED* name of command ('paste', 'cut', 'copy').
Tries to execute any of the paste cut or copy commands in IE . Returns a boolean indicating that the operation succeeded .