/* set startpage */

function setStartPage() {
 setPrompt("set1");
 setPrompt("set2");
 setPrompt("set3");
}

function setPrompt(id) {
 if (document.getElementById(id)) {
  document.getElementById(id).onclick = function(){
   this.style.behavior = 'url(#default#homepage)';
   this.setHomePage("http://www.goo.ne.jp/");
   return false;
  }
 } //end if
}

//browser check
var _agent = navigator.userAgent.toLowerCase();
var _win   = ( _agent.indexOf( 'win' ) != -1 );
var _ie5   = ( document.all && document.getElementById );
if( _win && _ie5 ){
 if(window.attachEvent){
  window.attachEvent("onload", setStartPage);
 }
}