function disableEnterKey(e) {
     var key;
     if(window.event)
          key = window.event.keyCode;     //IE
     else
          key = e.which;     //firefox
     if(key == 13)
          return false;
     else
          return true;
}

function valButton(btn) {
	var cnt = -1;
	for (var i=btn.length-1; i > -1; i--) {
	   if (btn[i].checked) {
	   	cnt = i; i = -1;}
	   }
	if (cnt > -1) return btn[cnt].value;

	else return null;
}

function limitText(limitField, limitCount, limitNum) {
	if (limitField.value.length > limitNum) {
		limitField.value = limitField.value.substring(0, limitNum);
	} else {
		limitCount.value = limitNum - limitField.value.length;
	}
}

function showWait(i) {
	document.getElementById("mc" + i).innerHTML="<img src=\"/images/wait.gif\" border=\"0\" height=\"12\" width=\"100\" />";
}