var tempString = unescape(location.href);

var Count=0;
var url = '';
while (tempString.indexOf('/')>-1 && Count<6) {
    Count=Count+1
    url = url +tempString.substr(0,tempString.indexOf('/'))+"/";
    tempString=tempString.substr(tempString.indexOf('/')+1,tempString.length-tempString.indexOf('/')+1);

}
var page = 'photo_tag.html';

function GetXmlHttpObject(){
	var xmlHttp = null;
	try{
	 // Firefox, Opera 8.0+, Safari
	 xmlHttp=new XMLHttpRequest();
	}
	catch (e){
	// Internet Explorer
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e){
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}

function SendReq(url, element){
	var req = GetXmlHttpObject();
	window.status='green';
	req.onreadystatechange = function(){
		if(req.readyState == 4 && req.status == 200) {
			if (element != ""){
				response = req.responseText;
		    	document.getElementById(element).innerHTML = response;
			}

	    }
    }
    req.open("GET", url, true);
    req.send(null);

}

function save_tag(art_id){
	if (art_id == null) {
		alert("null");
	}
	var comment = document.getElementById("comment_"+art_id).value;
	var title = document.getElementById("title_"+art_id).value;

	var http = url+page+"?function=save_tag&"+"tag_id="+art_id+"&comment="+comment+"&title="+title;
	hide_div('tag_edit_'+art_id);
	SendReq(http,'tag_view_'+art_id);
    show_div('tag_view_'+art_id);
}
function delete_tag(art_id){
	if (art_id == null) {
		alert("null");
	}
	var http = url+page+"?function=delete_tag&"+"tag_id="+art_id;
	SendReq(http,'tag_edit_'+art_id);
	//hide_div('tag_edit_'+art_id);
	//show_div('tag_view_'+art_id);
}

function remove_category(art_id,category_id){
	var http = url+page+"?function=remove_category"+"&doc_id="+art_id+"&category_id="+category_id;
	SendReq(http,'invisible');
}

function add_category(art_id,category_id){
	var http = url+page+"?function=add_category"+"&doc_id="+art_id+"&category_id="+category_id;
	SendReq(http,'invisible');
}

function show_div2(id){
	document.getElementById(id).style.display = 'block';
}
function hide_div2(id){
	document.getElementById(id).style.display = 'none';
}

function show_div(id){
	document.getElementById(id).style.display = 'block';
}

function hide_div(id){
	document.getElementById(id).style.display = 'none';
}