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

function submitForm(actionPage) {
  document.search.action = actionPage;
  //alert(document.search.action);
  document.search.submit();
  return 0;
}

function prepareForm(){
	var listSubmit = document.getElementById("listSubmit");
	var mapSubmit = document.getElementById("mapSubmit");
	listSubmit.onclick = function(){
		submitForm("searchresults.asp");
	}
	mapSubmit.onclick = function(){
		submitForm("resultsmap.asp");
	}
}

addLoadEvent(prepareForm);