title: Swap values in 2 textboxes with javascript
body: <p>I'm making a simple calculator with 4 inputs a,b,c &amp; d and need to have the ability to swap the values of c &amp; d. For example textbox c has a value of 45 &amp; textbox d has a value of 75. A button is clicked which swaps the vales so c=75 &amp; d=45</p>