function checkSearchByDate(){	
	
  var f = document.getElementById('relocate');
  if(!f) {
  	return false;
  }
  var d = f.day[f.day.options.selectedIndex].value;
  var m = f.month[f.month.options.selectedIndex].value;
  var y = f.year[f.year.options.selectedIndex].value;

  if(d === "31" && (m === "02_february" || m === "04_april" || m === "06_june" || m === "09_september" || m === "11_november" )){
    alert("Invalid date selected");
    return false;
  } else if(d === "30" && (m === "02_february")) {
    alert("Invalid date selected");
    return false;
  } else if(d === "" || m === "" || y === ""){
    alert("select a date");
    return false;
  }
  
  return true;
}