//Gets the browser specific XmlHttpRequest Object
function getXmlHttpRequestObject() {
	if (window.XMLHttpRequest) {
		return new XMLHttpRequest();
	} else if(window.ActiveXObject) {
		return new ActiveXObject("Microsoft.XMLHTTP");
	} else {
		alert("Your Browser Sucks!\nIt's about time to upgrade don't you think?");
	}
}

//Our XmlHttpRequest object to get the auto suggest
var searchReq = getXmlHttpRequestObject();

//Called from keyup on the search textbox.
//Starts the AJAX request.
function searchSuggest() {
	if (searchReq.readyState == 4 || searchReq.readyState == 0) {
		var str = escape(document.getElementById('txtSearch').value);
		searchReq.open("GET", 'searchSuggest.php?search=' + str, true);
		searchReq.onreadystatechange = handleSearchSuggest; 
		searchReq.send(null);
	}		
}

//Called when the AJAX response is returned.
function handleSearchSuggest() {
	if (searchReq.readyState == 4) {
		var ss = document.getElementById('search_suggest')
		ss.innerHTML = '';
		var str = searchReq.responseText.split("\n");
		for(i=0; i < str.length - 1; i++) {
			//Build our element string.  This is cleaner using the DOM, but
			//IE doesn't support dynamically added attributes.
			var suggest = '<div onmouseover="javascript:suggestOver(this);" ';
			suggest += 'onmouseout="javascript:suggestOut(this);" ';
			suggest += 'onclick="javascript:setSearch(this.innerHTML);" ';
			suggest += 'class="suggest_link">' + str[i] + '</div>';
			ss.innerHTML += suggest;
		}
		if (i==0) {
			ss.style.visibility  = "hidden";
		} else {
			ss.style.visibility  = "visible";
		}
		//Schließen link einfügen
		ss.innerHTML += '<p align="right"><a onmouseover="javascript:suggestOver(this);" onmouseout="javascript:suggestOut(this);" onClick="javascript:suggestClose(this);" class="suggest_link"><b>Fenster schließen</b></a></p>';
	}
}
// Close Function
function suggestClose (div_value) {
	document.getElementById('search_suggest').innerHTML = '';
	document.getElementById('search_suggest').style.visibility  = "hidden";
}

//Mouse over function
function suggestOver(div_value) {
	div_value.className = 'suggest_link_over';
}
//Mouse out function
function suggestOut(div_value) {
	div_value.className = 'suggest_link';
}
//Click function
function setSearch(value) {
	// HTML-TAGS entfernen
  	var newvalue = value.replace(/<.*?>/gi, '');
	//Kategorienamen entfernen (fängt mit &nbsp; an)
	var Suche =	newvalue.indexOf("&nbsp;");
	var produktname = newvalue.substring(0,Suche);
	document.getElementById('txtSearch').value = produktname;
	document.getElementById('search_suggest').innerHTML = '';
	document.getElementById('search_suggest').style.visibility  = "hidden";
	//zum Suchergebnis weiterleiten
	top.location.href = "advanced_search_result.php?keywords=" + produktname; 
}