function clearText(thefield) {
  if (thefield.defaultValue==thefield.value) { thefield.value = "" }
} 
function replaceText(thefield) {
  if (thefield.value=="") { thefield.value = thefield.defaultValue }
}

function ValidateDirectionFrm() {
	if (document.mainstreet.saddr.value=='Enter starting address (400 Main Street, Longmont CO)' || document.mainstreet.saddr.value=='') {
      alert("Please your starting address to get directions to our Main Street Location.");
	  document.mainstreet.saddr.focus();	
      return false;
	}
}