//<![CDATA[

/* This script and many more are available free online at
The JavaScript Source :: http://javascript.internet.com
Created by: Jay Rumsey :: http://www.nova.edu/~rumsey/
 */

 function UpdateCost() {
  var sum = 0;

  sum += document.frmUpdate.opt1_value.value * 125; // Single
  sum += document.frmUpdate.opt2_value.value * 425; // Foursome
  sum += document.frmUpdate.opt3_value.value * 25;  // Dinner only
  document.frmUpdate.amount_due.value = sum;
}

//]]>