function $(e){
	if(typeof e=='string')
	  e=document.getElementById(e);
	  return e
};

function collect(a,f){
	var n=[];
	for(var i=0;i<a.length;i++){
		var v=f(a[i]);
		if(v!=null)
		n.push(v)
	}
	return n
};

ajax={};

ajax.x=function(){
	try{
		return new ActiveXObject('Msxml2.XMLHTTP')
	}catch(e){
		try{return new ActiveXObject('Microsoft.XMLHTTP')
		}catch(e){
			return new XMLHttpRequest()
		}
	}
}
;
ajax.serialize=function(f){
	var g=function(n){
		return f.getElementsByTagName(n)
	};
	var nv=function(e){
		if(e.title)
		   return encodeURIComponent(e.title)+'='+encodeURIComponent(e.value);
		else 
		   return ''
	};
	var i=collect(g('input'),function(i){
		if((i.type!='radio'&&i.type!='checkbox')||i.checked)
		   return nv(i)});
		var s=collect(g('select'),nv);
		var t=collect(g('textarea'),nv);
		return i.concat(s).concat(t).join('&');
};

ajax.send=function(u,f,m,a){
	var x=ajax.x();
	x.open(m,u,true);
	x.onreadystatechange=function(){
		if(x.readyState==4)
		  f(x.responseText)
	};
	if(m=='POST')
	  x.setRequestHeader('Content-type','application/x-www-form-urlencoded');
	  x.send(a)
};

ajax.get=function(url,func){
	ajax.send(url,func,'GET')
};

ajax.gets=function(url){
	var x=ajax.x();
	x.open('GET',url,false);
	x.send(null);
	return x.responseText
};

ajax.post=function(url,func,args){
	ajax.send(url,func,'POST',args)
};

ajax.update=function(url,elm){
	var e=$(elm);
	var f=function(r){
		e.innerHTML=r
	};
	ajax.get(url,f)
};

ajax.submit=function(url,elm,frm){
	var e=$(elm);
	var f=function(r){
		e.innerHTML=r
	};
	ajax.post(url,f,ajax.serialize(frm))
};

var pos = 0;
var count = 0;

function noenter(key) {
        suggcont = document.getElementById("suggcontainer");
        if (suggcont.style.display == "block") {
                if (key == 13) {
                        choiceclick(document.getElementById(pos));
                        return false;
                } else {
                        return true;
                }
        } else {
                return true;
        }
}

document.onclick = function () { closechoices(); }

function suggest(key,query) {
        if (key == 38) {
                goPrev();
        } else if (key == 40) {
                goNext();
        } else if (key != 13) {
                if (query.length > 3) {
                        t = new Date();
                        ajax.get('suggest.php?q='+query+'&bla='+t.getTime(),update);
                } else {
                        update('');
                }
        }
}

function update(result) {
        arr = new Array();
        arr = result.split('\r\n');

        if (arr.length > 10) {
                count = 10;
        } else {
                count = arr.length;
        }

        suggdiv = document.getElementById("suggestions");
        suggcont = document.getElementById("suggcontainer");
        if (arr[0].length > 0) {
                suggcont.style.display = "block";
                suggdiv.innerHTML = '';
                suggdiv.style.height = count * 20;

                for (i = 1; i <= count; i++) {
                        novo = document.createElement("div");
                        suggdiv.appendChild(novo);
                        novo.id = i;
                        novo.style.height = "14px";
                        novo.style.padding = "3px";
                        novo.onmouseover = function() { select(this,true); }
                        novo.onmouseout = function() { unselect(this,true); }
                        novo.onclick = function() { choiceclick(this); }
                        novo.innerHTML = arr[i-1];
                }
        } else {
                suggcont.style.display = "none";
                count = 0;
        }
}

function select(obj,mouse) {
        obj.style.backgroundColor = '#3399ff';
        obj.style.color = '#ffffff';
        if (mouse) {
                pos = obj.id;
                unselectAllOther(pos);
        }
}

function unselect(obj,mouse) {
        obj.style.backgroundColor = '#ffffff';
        obj.style.color = '#000000';
        if (mouse) {
                pos = 0;
        }
}

function goNext() {
        if (pos <= count && count > 0) {
                if (document.getElementById(pos)) {
                        unselect(document.getElementById(pos));
                }
                pos++;
                if (document.getElementById(pos)) {
                        select(document.getElementById(pos));
                } else {
                        pos = 0;
                }
        }
}

function goPrev() {
        if (count > 0) {
                if (document.getElementById(pos)) {
                        unselect(document.getElementById(pos));
                        pos--;
                        if (document.getElementById(pos)) {
                                select(document.getElementById(pos));
                        } else {
                                pos = 0;
                        }
                } else {
                        pos = count;
                        select(document.getElementById(count));
                }
        }
}

function choiceclick(obj) {
        document.getElementById("searchinput").value = obj.innerHTML;
        count = 0;
        pos = 0;
        suggcont = document.getElementById("suggcontainer");
        suggcont.style.display = "none";
        document.getElementById("searchinput").focus();
}

function closechoices() {
        suggcont = document.getElementById("suggcontainer");
        if (suggcont.style.display == "block") {
                count = 0;
                pos = 0;
                suggcont.style.display = "none";
        }
}

function unselectAllOther(id) {
        for (i = 1; i <= count; i++) {
                if (i != id) {
                        document.getElementById(i).style.backgroundColor = '#ffffff';
                        document.getElementById(i).style.color = '#000000';
                }
        }
}