哪位高手给点指点,为什么取不到title的值啊 ?

Question

<script>
 $("<div id='s'><div id='body_' ><iframe id='Iframe1' width='100%' height='100%' src='WebForm6.aspx'> </iframe></div></div>").appendTo("body");
        alert(window.frames["Iframe1"].document.title); 
<script>
哪位高手给点指点,为什么取不到title的值啊 ,alert的是空的  ? 

Answer 1

try:
var win=window.frames["Iframe1"];
win.onload=function(){
alert(win.document.title);  
}

Answer 2

title是属性值需要用getAttribute("title")取到

Answer 3

能不能在问下 alert 触发了什么事件啊?

Answer 4

alert没触发什么事件win.onload是讲当iframe加载好了之后再去取title

Answer 5

 function creatrDIV(Div_ID,iframe_Src)// 动态创建弹出的 div 
          {
                $("<div id='"+Div_ID+"'><div id='body_"+Div_ID+"' ><iframe id='if_Show' width='100%' height='100%' src='"+iframe_Src+"'> </iframe></div></div>").insertAfter("#divMain");
                $("#"+Div_ID).addClass("ccD");
                var f1=window.frames["if_Show"];
                var  title_L;
                f1.onload=function(){
                     var title_L=f1.document.title;
                     alert(f1.document.title);
                }
                 $('#'+Div_ID).dialog({
                                autoOpen: false,
                                modal: false,
                                title: title_L,
                                zIndex:++z_indexMax,
                                minHeight:200,
                                minWidth:200,
                                position:'center'
                           });
                //$("#"+Div_ID).draggable({title:"aaaaa"});
          }为什么title: title_L, 没有效果呢 ? 要怎么改啊 

Answer 6

f1.onload=function(){
                     title_L=f1.document.title;
                     //alert(f1.document.title);
                }
 改过之后还是不行!!!