if(document.location.href.indexOf('page228.htm') > -1){
function calculate_228(){    
//***************************************************    
var basic_coverage_sum = 200;    
var enhanced_coverage_sum = 260;    
//***************************************************    
var bc1 = document.forms['form1'].bcfield.value;    
var bc = basic_coverage_sum*bc1;    
var ec1 = document.forms['form1'].ecfield.value;    
var ec = enhanced_coverage_sum*ec1;    
var tmp = ec + bc;    
document.getElementById('bc').innerHTML = bc.toFixed(2);    
document.getElementById('ec').innerHTML = ec.toFixed(2);    
document.getElementById('tmp').innerHTML = tmp.toFixed(2);    
}    
function isinteger(e){          
  var ev = e!=null  ? e : window.event;          
  return (ev.keyCode>=48 && ev.keyCode<=57);          
}      
function isinteger_2(e){           
  var ev = e!=null  ? e : window.event;           
  return (ev.keyCode>=46 && ev.keyCode<=57);           
} 
}