var productSearch = {
  init: function() {
    if(document.getElementById)
      productSearch.setup();
  },

  setup: function() {
    var input = document.getElementById('searchField');
    if(!input)
	  return;
	
	if(input.value == '')
      input.value = 'search';
	
    input.onclick = function() { 
      if(input.value == 'search')
        input.value = '';
    }
    input.onblur  = function() {
      if(input.value == '' || input.value == ' ')
        input.value = 'search';  
    }
  }
};

function addEvent(obj, evType, fn, useCapture){
  if (obj.addEventListener){
    obj.addEventListener(evType, fn, useCapture);
    return true;
  }
  else if (obj.attachEvent){
    var r = obj.attachEvent("on"+evType, fn);
    return r;
  }
}

addEvent(window, 'load', productSearch.init, false);