<div class="parent">
  <img src="images_path/or nothing" class="Images"/>
  <div class="content">
  </div>
</div>

var CustomizeImage = $(".CategoryNews-left").find(".Images").attr("src");
				alert(CustomizeImage);
				if(CustomizeImage == "")
				{	alert("ko co gi");
					$(".CategoryNews-left").find(".Images").css("display","none");
					$(".CategoryNews-left").find(".news").css("width","320px");
					$(".CategoryNews-left").find(".Content").css("width","320px");
				}

var CustomizeImage = $(".CategoryNews-left").find(".Images").attr("src");
alert(CustomizeImage);
if(CustomizeImage == "")
{   alert("ko co gi");
    $(".CategoryNews-left").find(".Images").css("display","none");
    $(".CategoryNews-left").find(".news").css("width","320px");
    $(".CategoryNews-left").find(".Content").css("width","320px");
}
else
{
        if(CustomizeImage.indexOf('src=""') > 0)
    {	alert("co nhung rong");
    	$(".CategoryNews-left").find(".Images").css("display","none");
    	$(".CategoryNews-left").find(".news").css("width","320px");
    	$(".CategoryNews-left").find(".Content").css("width","320px");
    }
}

<div class="CategoryNews-left">
<div class="Images">
<img src="images/Anhto_listtin_trai.gif" alt="anh tin" />
</div>
<div class="news">
<h3>blahblahblahblahblah</h3>
<p>blahblah- blahblahblah</p>
</div>
<div class="Content">
blahblahblahblahblahblah
</div>
<div class="relateNews">
<ul>
<li><a href="">blahblahblahblahblahblahblahblahblahblah</a> <font>VnExpress</font></li>
</ul>

$(".CategoryNews-left").find(".Images").attr("src");

$(".CategoryNews-left .Images img").attr("src");