//<!--
	function jc_checkmail() {
		var arr_field = new Array('mailsubject', 'sendername', 'senderemail', 'senderphone', 'mailmessage');
		var arr_name = new Array('subject', 'name', 'email', 'phone', 'message');
		var int_loop = arr_field.length;
		for( var i=0; i<int_loop; i ++ ) {
			temp_field = eval( 'document.f_main.'+ arr_field[i] );
			if( temp_field.value == '' ) {
				window.alert( 'Please fill your info : '+ arr_name[i] );
				temp_field.focus();
				return false;
			} 
		}
		return true;
	}

	//-->