function HideName()
{
  document.getElementById('IDSearch').style.color = "black";
  document.getElementById('IDSearch').value="";
}

function ShowEnterYourName()
{
  if(document.getElementById('IDSearch').value == "")
  {
    document.getElementById('IDSearch').style.color = "gray";
    document.getElementById('IDSearch').value="Поиск";
  }
}