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



$(document).ready(function(){
   $("a > img[@alt^='External Link:']").parent().attr("rel","external");
   $("a[@title^='External Link:']").attr("rel","external");
   $("a[@rel*='external']").attr("target","_blank");
});