Iframe existence example

Iframe existence example

by dhchow

HTML

<iframe id="iexist" class="media_upload_iframe" frameborder="0" scrolling="no" style="width:200px; height:50px; position:relative; float:right; bottom:15px;"></iframe>

<div id="feedme"></div>

JavaScript

$(function(){
    if($("#iexist").attr("contentWindow") != null)
        alert("contentWindow found");
            
    var iframe = $('<iframe id="doiexist" class="media_upload_iframe" frameborder="0" scrolling="no" style="width:200px; height:50px; position:relative; float:right; bottom:15px;"></iframe>');
    
    if( iframe.attr("contentWindow") != null)
        alert("i exist too!");
    
    $("#feedme").append(iframe);
        
    if( $("#doiexist").attr("contentWindow") != null)
        alert("i exist after appended")
})