fix img overflow bug.

app/views/memos/show.html.erb

@@ -58,18 +58,13 @@
 }
 .comments img {
 	overflow:hidden;
-	width: 100%;
+	/*width: 100%;*/
 	max-width: 500px; 
-	height: auto;
+	height: auto !important;
 	width:expression(this.width > 500 ? "500px" : this.width+"px");
 }
 
 </style>
-<script>
-	$(document).ready(function($) {
-		var img = $("div > img").css("height", 'auto')
-	});
-</script>
 <!-- < %= forum_breadcrum%> -->
 <div class="lz">
 	<div class="lz-left">