function getSelectedText() { //該函數碼自：http :http 借用//www.codetoad.com/javascript_get_selected_text.asp
var txt = "";
if (window.getSelection) {
txt = window.getSelection();
} else if (window.document.getSelection) {
txt = window.document.getSelection();
} else if (window.document.selection) {
txt = window.document.selection.createRange(). text;
}
返回txt;
}
