/* Set the input tag attribute to support search suggest */

/* 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 does not support Ajax.\nPlease upgrade your browser.");
	}
}

/* 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('search').value);
		if (str != '') {
			searchReq.open("GET", '/search_suggest.php?search=' + str, true);
			searchReq.onreadystatechange = handleSearchSuggest;
			searchReq.send(null);
		}
		else {
			document.getElementById('search_suggest').style.visibility="hidden";
		}
	}
}

/* Called when the AJAX response is returned. */
function handleSearchSuggest() {
	if (searchReq.readyState == 4) {
		var ss = document.getElementById('search_suggest')
		ss.style.visibility="visible";
		if (searchReq.status == 200) {
			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;
			}
		}
		else {
			ss.innerHTML = 'No data - Network error';
		}
	}
}

/* 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) {
	document.getElementById('search_suggest').innerHTML = '';
	document.getElementById('search_suggest').style.visibility="hidden";
	document.getElementById('search').value = value;
	modifySearchImageOnSubmit();
	document.getElementById('searchform').submit();
}