NDA checkbox is not working right

JavaScript
1

I am making people check a NDA checkbox before they can click the “go to cart button” but it is not popping up.

Here is what I have.

JS

<script type="text/javascript">
jQuery(document).ready(function(){
 setformfieldsize(jQuery('#Order0_NDAAgreement'), 2, '')
})
</script><script type="text/javascript">
jQuery(window).load(function(){
	//jQuery('a.continueButton:first').unbind('click');
	jQuery("a.continueButton:first").click(function(event){
	 var hollaback = jQuery(this).attr('href').replace(/javascript:/g, '');
	event.preventDefault();

	if (jQuery("#Order0_NDAAgreement:checked").val() == null){
	         alert("Please agree to the terms of the Non-Disclosure Agreement.");
	          jQuery("#Order0_NDAAgreement").focus();
	         return false;

	    } else {
	         eval(hollaback);
	         return true;
	    }
	});
});
</script>

HTML

<div style="width:325px; margin:0 auto; z-index: 10; position:relative; margin-top:-110px">

  <input id="Order0_NDAAgreement" type="checkbox" name="Order0_NDAAgreement" onsubmit="return Validate()" required="1"/><label for="Order0_NDAAgreement"><span style="margin-left:10px; font-size:12px; color:#5f6062;">I agree to the terms of the <a class="fancybox" href="https://www.mywebsite.com/nda.php" target="_blank">Non-Disclosure Agreement</a></span></label>


</div>

CSS for button

.continueButton, .cartButton, .codeButton  {
	display: inline-block;
	outline: none;
	cursor: pointer;
	text-align: center;
	text-decoration: none;
	font-weight: bold;
	font-size: 14px;
	color: #fff;
	text-shadow: 0 1px 1px rgba(0,0,0,.3);
	-webkit-border-radius: 4px;
	-moz-border-radius: 4px;
	border-radius: 4px;
	-webkit-box-shadow: 0 1px 2px rgba(0,0,0,.2);
	-moz-box-shadow: 0 1px 2px rgba(0,0,0,.2);
	box-shadow: 0 1px 2px rgba(0,0,0,.2);
	border: solid 1px #666;
	background: #444;
	background: -webkit-gradient(linear, left top, left bottom, from(#777777), to(#444444));
	background: -moz-linear-gradient(top,  #777777,  #444444);
	filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#777777', endColorstr='#444444');
    }

I cannot get it to work for the life of me. (It works for the top button but none else, I just need it working for the checkout button)

Now on my page it does throw a pop-up saying they must put in their information, but I want the NDA box to pop up before they ask for that.

Any help would be appreciated.

Site in question is

https://yourreferral.infusionsoft.com/app/manageCart/showManageOrder
2

Hi,

I can’t see an NDA checkbox to check on the page you link to.
Am I missing something?