摘要：
function SelectAll() { var lst1=window.document.getElementById("SourceListBox"); var length = lst1.options.length; for(var i=0;i<length;i++) { var v = lst1.options[i].value; var t = lst1.options[i].text; var lst2=window.document.getElementById("DestinationListBox"); lst2.options[i] = new Option(t 阅读全文