function controlSubmitButton(){
	var field=document.getElementById("search_query");
	var button=document.getElementById("search_submit");
	var live_search=document.getElementById("live_search");


	if(field.value.length >= 3){
		button.style.color='#333';
	} else {
		button.style.color='gray';
	}
}

function LiveSearch(){
	var live_search=document.getElementById("live_search");
	var field=document.getElementById("search_query");

	if(field.value.length >= 3){
		req=createRequest();
		req.open('POST','/elevators/search/ajax/',false);
		req.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=utf-8");
		req.send("query="+field.value);

		if(req.responseText=='no_results'){
			live_search.innerHTML=' ';
			live_search.style.display='none';
		} else {
			live_search.style.display='block';
			live_search.innerHTML=req.responseText;
		}
  
	} else {
		live_search.innerHTML=' ';
		live_search.style.display='none';
	}

	controlSubmitButton();
}

function submitSearch(){
	var searchForm=document.getElementById("searchForm");
	var field=document.getElementById("search_query");

	if(field.value.length >= 3){
		searchForm.submit();
	}
}