var search_checkClearCount = 0;
function checkClear(e, input,defaultPhrase) {
  var keynum;
  if(window.event) {
	keynum = e.keyCode;
  } else if(e.which) {
	keynum = e.which;
  }
  if ( !search_checkClearCount && keynum !=9  && input.value == defaultPhrase){
	input.value = "";
	search_checkClearCount++;
  }
}