function validatefrm() {
	if (isBlank(document.LinkFrm.txtDescription.value)) {
 	   document.LinkFrm.txtDescription.focus()
	   alert(Name+" kan not left blank. ")
	   return false
            }
	if (isBlank(document.LinkFrm.txtURL.value)) {
 	   document.LinkFrm.txtURL.focus()
	   alert(URL+" kan not left blank. ")
	   return false
            }
	if (isBlank(document.LinkFrm.txtTitle.value)) {
 	   document.LinkFrm.txtTitle.focus()
	   alert(Title +" kan not left blank. ")
	   return false
            }

  }

   function validate(fieldName, fieldValue) {
	if (isBlank(fieldValue)) {
	   alert(fieldName+" kan not left blank. ")
	   return false
            }
	return true
   }

  function isBlank(s) {
    var len=s.length
    var i
    for (i=0;i<len;++i)  {
	   if(s.charAt(i) !=" ") return false
    }
    return true
  }

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