..
var element=$('attribute140');
spConfig.configureElement(element);
..

<script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<script type="text/javascript">
    jQuery.noConflict();
    var spConfig = new Product.Config(<?php echo $this->getJsonConfig() ?>);
</script>
<script language="javascript">
    var magentoAttrColor = 140;
    jQuery(document).ready(function() {
    ...

<script type="text/javascript">
    jQuery.noConflict();
    var spConfig = new Product.Config(<?php echo $this->getJsonConfig() ?>);
    jQuery(document).ready(function() {
        alert('go');
    });
</script>

view/type/options/configurable.phtml

var spConfig = new Product.Config(<?php echo $this->getJsonConfig() ?>);

//if(prevConfig.config.allowedProducts
//&& prevConfig.config.allowedProducts.indexOf(options[i].products[j])>-1){
         allowedProducts.push(options[i].products[j]);
//}