Index: branches/version-2_13-dev/html/install/templates/agreement.tpl
===================================================================
--- branches/version-2_13-dev/html/install/templates/agreement.tpl	(revision 23066)
+++ branches/version-2_13-dev/html/install/templates/agreement.tpl	(revision 23109)
@@ -89,10 +89,14 @@
     </table>
 
-    <table width="500" border="0" cellspacing="1" cellpadding="8" summary=" ">
+    <table width="500" border="0" cellspacing="1" cellpadding="8">
         <tr><td height="20"></td></tr>
         <tr>
             <td align="center">
-            <a href="#" onmouseover="eccube.chgImg('../img/install/back_on.jpg','back')" onmouseout="eccube.chgImg('../img/install/back.jpg','back')" onclick="document.form1['mode'].value='return_welcome';document.form1.submit();" /><img  width="105" src="../img/install/back.jpg"  height="24" alt="前へ戻る" border="0" name="back"></a>
-            <a href="#" onclick="document.form1.submit();"><input type='image' onMouseover="eccube.chgImgImageSubmit('../img/install/next_on.jpg',this)" onMouseout="eccube.chgImgImageSubmit('../img/install/next.jpg',this)" src="../img/install/next.jpg" width="105" height="24" alt="次へ進む" border="0" name="next" id="next"></a>
+                <a href="#" onclick="document.form1['mode'].value='return_welcome';document.form1.submit();">
+                    <img class="hover_change_image" width="105" src="../img/install/back.jpg" height="24" alt="前へ戻る" name="back">
+                </a>
+                <a href="#" onclick="document.form1.submit();">
+                    <input type='image' class="hover_change_image" src="../img/install/next.jpg" width="105" height="24" alt="次へ進む" name="next" id="next">
+                </a>
             </td>
         </tr>
Index: branches/version-2_13-dev/html/js/eccube.js
===================================================================
--- branches/version-2_13-dev/html/js/eccube.js	(revision 23108)
+++ branches/version-2_13-dev/html/js/eccube.js	(revision 23109)
@@ -88,8 +88,4 @@
     };
 
-    eccube.chgImgImageSubmit = function(fileName,imgObj){
-        imgObj.src = fileName;
-    };
-
     // 郵便番号入力呼び出し.
     eccube.getAddress = function(php_url, tagname1, tagname2, input1, input2) {