function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

function init(){
	if(document.getElementById){
		searchBox = document.getElementById('s');
		if(searchBox){
			searchBox.onfocus = function(){
				this.select();	
			}
		}
	}
}

addLoadEvent(init);