function disable_enable_drivetime(miles, element_name) {    
  switch (element_name) {
    case 'distance_F':
      if (miles != 0) {
        //document.search_select.distance_Fh.value = miles;
      } 
      break;
    case 'drivetime_F':
      if (miles != 0) {
        document.getElementById('distance_F').selectedIndex = 0;
      }
      break;
    default:
      break;
  }	
if(document.search_select.pc_F.value != '' && document.search_select.pc_F.value != ' Postcode' || document.getElementById('distance_F').value=='1000'){			
	if(ValidateForm()) {
    if (miles != 0){document.search_select.distance_Fh.value = miles;}
    document.search_select.force_price_sort_F.value = 'Y';
    document.search_select.submit();
  }
}else{		
	alert("Please enter your Postcode.");
	document.getElementById('distance_F').selectedIndex = 0;		
}
}
function disable_enable_peak( peakh ){	
document.search_select.rpeakh.value = peakh.value;	
if(document.search_select.pc_F.value == ' Postcode'){
  alert('Please provide your UK Postcode.\n');
  return false;
} else {
  if(ValidateForm())document.search_select.submit();
}
}
function setselectvalue(distance,value){
	if (distance != '') {
		for (i=0;i < document.getElementById(value).length;i++){
				if(document.getElementById(value).options[i].value == distance){
					document.getElementById(value).selectedIndex = i; 
				}
			}
	}
}

function sortResults(by){
	document.search_select.force_price_sort_F.value = 'Y';
	document.search_select.sort_order_F.value = by;
	document.search_select.submit();
	//top.location='/search-results.lml?sort_order_F=' + by;
}