var searchReq = createRequest();

//Called from keyup on the search textbox.
//Starts the AJAX request.
function searchSuggest() {
	document.getElementById('req_cat_id').value = '';
	if (document.getElementById('requestwhat').value.length >=3)
	{
		document.getElementById('suggest_container').style.display = 'block';
		document.getElementById('suggest_body').style.display = 'block';	
		document.getElementById('search_suggest').style.display = 'block';
		if (searchReq.readyState == 4 || searchReq.readyState == 0) {
			var str = escape(document.getElementById('requestwhat').value);
			searchReq.open("GET", 'searchSuggest.php?search=' + str, true);
			searchReq.onreadystatechange = handleSearchSuggest; 
			searchReq.send(null);
		}	
	}
	else {
		if (document.getElementById('requestwhat').value.length >=1)
		{
			document.getElementById('suggest_container').style.display = 'block';
			document.getElementById('suggest_body').style.display = 'block';		
			document.getElementById('search_suggest').style.display = 'block';
			var ss = document.getElementById('search_suggest');
			ss.innerHTML = '';
			var suggest = '<div onmouseover="javascript:suggestOver(this);" ';
			suggest += 'onmouseout="javascript:suggestOut(this);" ';
			suggest += 'onclick="javascript:setSearch(\'keep typing...\', \'0\');" ';
			suggest += 'class="suggest_link">keep typing...</div>';
			ss.innerHTML += suggest;						
		}
		else {
			document.getElementById('search_suggest').style.display = 'none';
			document.getElementById('suggest_container').style.display = 'none';
			document.getElementById('suggest_body').style.display = 'none';			
		}
	}
}

//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++) {
			var reqs = str[i].split("|");
		
			var suggest = '<div onmouseover="javascript:suggestOver(this);" ';
			suggest += 'onmouseout="javascript:suggestOut(this);" ';
			suggest += 'onclick="javascript:setSearch(\'' + reqs[0] + '\', \'' + reqs[1] + '\');" ';
			suggest += 'class="suggest_link">' + reqs[0] + '</div>';
			ss.innerHTML += suggest;
		}
		if (str.length == 1) {
			var suggest = '<div onmouseover="javascript:suggestOver(this);" ';
			suggest += 'onmouseout="javascript:suggestOut(this);" ';
			suggest += 'onclick="javascript:setSearch(\'keep typing...\', \'0\');" ';
			suggest += 'class="suggest_link">no matches found, please check spelling...</div>';
			ss.innerHTML += suggest;	
		}
	}
}

//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, catid) {
	if (value != '')
	{
		document.getElementById('requestwhat').value = value;
		document.getElementById('req_cat_id').value = catid;
	}
	document.getElementById('search_suggest').innerHTML = '';
	document.getElementById('search_suggest').style.display = 'none';
	document.getElementById('suggest_container').style.display = 'none';
	document.getElementById('suggest_body').style.display = 'none';	
}