function getXmlHttpRequestObject()
{
	if (window.XMLHttpRequest)
	{
		return new XMLHttpRequest();
	}
	else if(window.ActiveXObject)
	{
		return new ActiveXObject("Microsoft.XMLHTTP");
	}
}

var searchReq = getXmlHttpRequestObject();

function searchSuggest() {
	if ((searchReq.readyState == 4 || searchReq.readyState == 0) && (trimWoord(document.getElementById('zoekWoord').value).length > 2)) {
		var str = escape(document.getElementById('zoekWoord').value);
		searchReq.open("GET", '../../autocomplete/zoekWoord.php?search=' + str + "&dummy=" + Math.random(), true);
		searchReq.onreadystatechange = handleSearchSuggest; 
		searchReq.send(null);
	}
	else
	{
		document.getElementById('zoekTip').style.display = 'none';
	}
}

function handleSearchSuggest() {
	if (searchReq.readyState == 4) {
		var ss = document.getElementById('zoekTip');
		ss.innerHTML = '';
		var str = searchReq.responseText.split("\n");
		for(i=0; i < str.length - 1; i++) {
			var suggest = '<div onmouseover="javascript:suggestOver(this);" ';
			suggest += 'onmouseout="javascript:suggestOut(this);" ';
			suggest += 'onclick="javascript:setSearch(this.innerHTML);" ';
			suggest += 'class="zoekLink">' + str[i] + '</div>';
			ss.innerHTML += suggest;
		}
	}	
	if(document.getElementById('zoekTip').innerHTML == '')
	{
		document.getElementById('zoekTip').style.display = 'none';
	}
	else
	{
		document.getElementById('zoekTip').style.display = 'block';
	}
}

function suggestOver(div_value) {
	div_value.className = 'zoekLink_over';
}

function suggestOut(div_value) {
	div_value.className = 'zoekLink';
}

function setSearch(value) {
	document.getElementById('zoekWoord').value = value;
	document.getElementById('zoekTip').innerHTML = '';
		if(document.getElementById('zoekTip').innerHTML == '')
	{
		document.getElementById('zoekTip').style.display = 'none';
	}
	else
	{
		document.getElementById('zoekTip').style.display = 'block';
	}
}

function verbergZoekTip()
{
	setTimeout("document.getElementById('zoekTip').style.display = 'none';", 500);
}

function trimWoord(value) {
  value = value.replace(/^\s+/,'');
  value = value.replace(/\s+$/,'');
  return value;
}