function checktext(formref) {
	var radioFlag = false;
	obj = document.getElementById("sch");

	for(i=0; i<obj["viewType"].length; i++){
		if(obj["viewType"][i].checked == true)  radioFlag = true;
	}
	if(! radioFlag)
		alert("Please select view type.");
	else { 
		obj.action="say_list.asp";
		obj.submit();
	}
}