remove price add and sub in option select box

<script type="text/javascript">
// <![CDATA[
    jQuery(document).ready(function(e) {
        checkoptions();
 
        jQuery("select.super-attribute-select").change(function(){
            checkoptions();
        });
    });
 
    function checkoptions(){
        jQuery("select.super-attribute-select option").each(function(){
            var optiontext = jQuery(this).text();
            var addsignpos = optiontext.indexOf(' +');
            var subtractsignpos = optiontext.indexOf(' -');
            if(addsignpos>0){
                var result = optiontext.substring(0,addsignpos);
                jQuery(this).html(result);
            }
 
            if(subtractsignpos>0){
                var result = optiontext.substring(0,subtractsignpos);
                jQuery(this).html(result);
            }
        });
    }
// ]]>
</script>

 追加以上JS到文件：app/design/frontend/default/sanorita/template/catalog/product/view/type/options/configurable.phtml