You need to bring the javascript into your template:
So, link this from the header.php (with the appropriate new path):
<script type="text/javascript" src="https://www.mdn-realtors.com/calculators.js"></script>
For this particular page you also have this script, so maybe you’d want to create a special page template with this code in it:
<script type="text/javascript"><!--
tips = new Array();
tips['loan_amount'] = "Enter the exact amount of money to be borrowed.";
tips['interest_rate'] = "Enter the actual interest rate on the loan, as quoted by the lender.";
tips['loan_term'] = "Enter the number of years over which the loan will be amortized.";
tips['tax'] = "Enter the amount of Property Tax assessed by the municipality governing your property.";
tips['insurance'] = "Enter the amount you pay annually for Home Owners Insurance.";
tips['income'] = "Enter your true Gross Annual Income, or the amount of income you recieve before taxes.";
tips['debt'] = "Add up all monthly installment loan payments (e.g. car, boat, student, furniture), Minimum Monthly Payments on Credit Cards, Monthly Legal Obligations (e.g. child support, alimony, court judgements).";
//--></script>
Then you’d paste in your data to the actual WordPress page from the WordPress editor:
<table id="texttable" align="center" cellpadding="5"><tr><td align="left">
Want to know how big of a loan you can take on? Fill in the boxes below to find out.
</td></tr></table><br />
<table align="center" cellpadding="5"><tr><td valign="top">
<form method="post">
<table class="calc" cellpadding="5" cellspacing="0" align="center" width="100%">
<tr>
<th colspan="3"><b>How much can I borrow?</b></th>
</tr>
<tr><td align="right">
Annual Interest Rate:
</td><td>
<input class="calc_input" type="text" name="param[interest_rate]" value="6.5" size="3"> %
</td><td valign="middle">
<img id="interest_rate" src="images/tip.gif" width="19" height="19" onMouseOver="show_tip(this.id)" onMouseOut="hide_tip()" align="absMiddle">
</td></tr>
<tr><td align="right">
Term of the Loan:
</td><td>
<input class="calc_input" type="text" name="param[loan_term]" value="30" size="3"> years
</td><td valign="middle">
<img id="loan_term" src="images/tip.gif" width="19" height="19" onMouseOver="show_tip(this.id)" onMouseOut="hide_tip()" align="absMiddle">
</td></tr>
<tr><td align="right">
Annual Real Estate Taxes:
</td><td>
<input class="calc_input" type="text" name="param[tax]" value="3,500" size="3"> $
</td><td valign="middle">
<img id="tax" src="images/tip.gif" width="19" height="19" onMouseOver="show_tip(this.id)" onMouseOut="hide_tip()" align="absMiddle">
</td></tr>
<tr><td align="right">
Annual Homeowners Insurance:
</td><td>
<input class="calc_input" type="text" name="param[insurance]" value="300" size="3"> $
</td><td valign="middle">
<img id="insurance" src="images/tip.gif" width="19" height="19" onMouseOver="show_tip(this.id)" onMouseOut="hide_tip()" align="absMiddle">
</td></tr>
<tr><td align="right">
Gross Annual Income:
</td><td>
<input class="calc_input" type="text" name="param[income]" value="120,000" size="8"> $
</td><td valign="middle">
<img id="income" src="images/tip.gif" width="19" height="19" onMouseOver="show_tip(this.id)" onMouseOut="hide_tip()" align="absMiddle">
</td></tr>
<tr><td align="right">
Monthly Debt Obligations:
</td><td>
<input class="calc_input" type="text" name="param[debt]" value="1,500" size="3"> $
</td><td valign="middle">
<img id="debt" src="images/tip.gif" width="19" height="19" onMouseOver="show_tip(this.id)" onMouseOut="hide_tip()" align="absMiddle">
</td></tr>
</table>
<br />
<table cellpadding="5" cellspacing="0" align="center" width="100%">
<tr><td align="center">
<input class="calc_button" type="submit" name="param[calculate]" value="Calculate">
</td></tr>
</table>
<!-- DO NOT REMOVE THE LINE BELOW. SEE THE LICENSE AGREEMENT. THANKS -->
<div id="powered_by">Powered by <a href="https://www.mortgagecalculatorsplus.com/">Mortgage Calculators Plus</a></div>
<!-- DO NOT REMOVE THE LINE ABOVE. SEE THE LICENSE AGREEMENT. THANKS -->
</td></tr></table>
Hope that gets you headed in the right direction.
