// Check radio buttons
// if no radio button is checked alert

function is_checked(thisform) {

	myOption = -1;
	
	if (thisform.do_check) {
		
		for (i=thisform.row_1.length-1; i > -1; i--) {
			if (thisform.row_1[i].checked) {
				myOption = i; i = -1;
			}
		}
		if (myOption == -1) {
			alert(unescape("Bitte w%E4hlen Sie zuerst eine Versicherung aus."));
			return false;
		}
		
		thisform.submit();
	
	} else {
		thisform.submit();
	}
	
}