msg.append("<script language='javascript'>");
//msg.append("function ReturnValue(){");
msg.append("var openertext = window.opener.document."+fname+".value;");
msg.append("window.opener.document."+fname+".value=openertext +'"+text.toString()+"';");
msg.append("window.opener=true;window.close();");
//msg.append("}");
msg.append("</script>");

var imgheight
var imgleft
document.ns = navigator.appName == "Netscape"

function StringBuffer(){//自定义一个StringBuffer类。以便提高String的连接字符串性能
this._strings = new Array;
}
StringBuffer.prototype.append = function(str){
this._strings.push(str);
}
StringBuffer.prototype.toString = function(){
return this._strings.join("");//join()用参数里面的字符串连接Array里面的值
}