function confirmDelete(){
	return (confirm("Are you sure you want to delete\n this record"));
}

function checkRadios() {
	var el = document.forms[0].elements;
	for(var i = 0 ; i < el.length ; ++i) {
	  if(el[i].type == "radio") {
	   var radiogroup = el[el[i].name]; 
	   var itemchecked = false;
	   for(var j = 0 ; j < radiogroup.length ; ++j) {
	    if(radiogroup[j].checked) {
		 itemchecked = true;
		 break;
		}
	   }
	   if(!itemchecked) {
	    alert("Please select a record.");
	    if(el[i].focus)
	     el[i].focus();
		return false;
	   }
	  }
	}
	return true;
}

function numRadios() {
	var el = document.forms[0].elements;
	var num = 0;
	for(var i = 0 ; i < el.length ; ++i) {
	  if(el[i].type == "radio") {
	 		num++;
	  }
	}
	return num;
}

function browseDelete(){
	var result = false;
	var numradio = numRadios();
	if(numradio > 1){
		result = checkRadios();
	}
	else{
		result = checkRadio();
	}
	
	if( result ){
			return ( confirmDelete() );
	}else{
		return false;	
	}		
}

function browseCheckOpt(){
	var result = false;
	var numradio = numRadios();
	if(numradio > 1){
		result = checkRadios();
	}
	else{
		result = checkRadio();
	}
	return result;
}

function checkRadio(){
	if(frmBrowse.rdoOpt.checked){
		return true;
	}
	else{
		alert("Please select a record.");
		return false;
	}
}

function searchCheck(){	
	var el = document.forms[0].elements;
	if( isEmpty( el[0].value ) ){
		alert("Please enter a search keyword ");
		el[0].focus();
		return false;
	}
	return true;
}