<body onload="df()"></***
function df(){
var t=new Tune("Hello");
t.addPerform("A");
t.addPerform("b");
t.addPerform("c");
alert(t.title);
alert(t.showList());
}
var Tune=function(title){
this.title=title;
var performArray=new Array();
this.addPerform=function(perform){
performArray.push(perform);
}
this.showList=function(){
var str="";
for(var i=0;i<performArray.length;i++)
{
str+=performArray[i]+" ";
}
return str;
}
}