jquery - Another javascript undefined issue -


i'm having issue getting script run. it's close keeps throwing undefined error anytime add button object.

here html: 

<div class="centerboxcontentsfeatured centeredcontent ie_margin" style="width:33%;"><div class="product-col">                 <div class="tie">                     <div class="indent2">                         <div>                             <a class="name" href="http://localhost:8080/rfs700/index.php?main_page=product_info&amp;cpath=37&amp;products_id=128">tb-0070 tabletop interpreter booth</a>                         </div>                         <div class="img">                             <a href="http://localhost:8080/rfs700/index.php?main_page=product_info&amp;cpath=37&amp;products_id=128"><img src="images/products/tb0070.jpg" alt="tb-0070 tabletop interpreter booth" title=" tb-0070 tabletop interpreter booth " width="130" height="130"></a>                         </div>                         <div class="desc">                             tb-0070 tabletop interpreter booth accommodate...                         </div>                         <div class="price"><strong><img src="includes/templates/template_default/images/call_for_prices.jpg" alt="call price" title=" call price " width="78" height="20"></strong></div>                         <div class="buttons">                             <a href="http://localhost:8080/rfs700/index.php?main_page=products_new&amp;action=buy_now&amp;products_id=128"><img src="includes/templates/theme324/buttons/english/button_in_cart.gif" alt="add cart" title=" add cart " width="106" height="27"></a><a href="http://localhost:8080/rfs700/index.php?main_page=product_info&amp;cpath=37&amp;products_id=128"><img src="includes/templates/theme324/buttons/english/button_goto_prod_details.gif" alt="go product's detailed information" title=" go product's detailed information " width="58" height="27"></a>                         </div>                     </div>                 </div>             </div></div>

here javascript code: 

<script type="text/javascript">     $(document).ready(function () {         var doc = $(".centerboxcontentsfeatured .price");         doc.each(function (){             var image = $(this).find("img").attr("alt");             var button = $(this).find(".buttons");             if (image == "call price"){                 alert(button.find("a:first-child").attr("href"));             }         });     }); </script>

when alert(button) displays object. if add else button object example shown in javascript code above, displays undefined. ideas?

$(".centerboxcontentsfeatured .price") not contain .buttons. need traverse 1 level doc back.

<script type="text/javascript">     $(document).ready(function () {         var doc = $(".centerboxcontentsfeatured .price");         doc.each(function (){             var image = $(this).find("img").attr("alt");             var button = $(this).parent().find(".buttons");             if (image == "call price"){                 alert(button.find("a:first-child").attr("href"));             }         });     }); </script>

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