var request;

function createRequest() {
  try {
    request = new XMLHttpRequest();
  } catch (trymicrosoft) {
    try {
      request = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (othermicrosoft) {
      try {
        request = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (failed) {
        request = false;
      }
    }
  }

  if (!request)
    alert("Error initializing XMLHttpRequest!");
}

function validateSearch(strField){

	if(document.getElementById(strField).value == ''){
		alert('Please enter a search value');
		return false;
	}else{
		return true;
	}

}

function showMap(){

	var newWin=window.open("../google_map.asp?cuisine=Pizza","map","directories=0,height=510,width=840,location=no,menubar=no,resizable=yes,scrollbars=no,status=no,toolbar=no");
	var agt=navigator.userAgent.toLowerCase();
		if(!(agt.indexOf("msie")!=-1 && (parseInt(agt.substr(agt.indexOf("msie")+5,1))==4)))
		{
			newWin.focus();
	}

}