function by_card_name()
{
  var card_name=document.advanced_search.card_name;
  var selected_card=document.advanced_search.selected_card;
  var card_category=document.advanced_search.card_category;
  var card_type=document.advanced_search.card_type;
  var card_issuer=document.advanced_search.card_issuer;

  if (card_name.value !=""){
	   selected_card.disabled=true;
	   card_category.disabled=true;
	   card_type.disabled=true;
	   card_issuer.disabled=true;
	   selected_card.selectedIndex=0;
	   card_category.selectedIndex=0;
	   card_type.selectedIndex=0;
	   card_issuer.selectedIndex=0;			
  }else{
	   selected_card.disabled=false;
	   card_category.disabled=false;	
 	   card_type.disabled=false;	
	   card_issuer.disabled=false;
  }  
}
function reset()
{
  var card_name=document.advanced_search.card_name;
  var selected_card=document.advanced_search.selected_card;
  var card_category=document.advanced_search.card_category;
  var card_type=document.advanced_search.card_type;
  var card_issuer=document.advanced_search.card_issuer;

  card_name.value="Card Name...";
  selected_card.selectedIndex=0;
  card_category.selectedIndex=0;
  card_type.selectedIndex=0;
  card_issuer.selectedIndex=0;

  return true;
}