// [0] - current id [1] - id prefix [2] - true = not auto open [3] - true = auto hide [4] - force current popuped block for show|hide onclick
var current_popuppeds=new Array(
	new Array("","search-type_",true,true,true),
	new Array("","category_",true,true,true),
	new Array("","style_",true,true,true),
	new Array("","author_",true,true,true)
	);

var IE = 0;
if (navigator.userAgent.indexOf("MSIE")!=-1) IE = 1;
var IE70 = 0;
if (navigator.userAgent.indexOf("MSIE 7.0")!=-1) IE70 = 1;
var konqueror = 0;
if (navigator.userAgent.indexOf("Konqueror") !=-1) konqueror = 1;
var opera = 0;
if (navigator.userAgent.indexOf("Opera")!=-1) opera = 1;
var FF20 = 0;
if (navigator.userAgent.indexOf("Firefox/2.0")!=-1) FF20 = 1;
var FF15 = 0;
if (navigator.userAgent.indexOf("Firefox/1.5")!=-1) FF15 = 1;
var safari419_3 = 0;
if (navigator.userAgent.indexOf("Safari/419")!=-1) safari419_3 = 1;

function show_hide_block(block,id){
	var div_block=document.getElementById(current_popuppeds[block][1]+id);
	if(div_block.style.visibility == 'visible' && (!current_popuppeds[block][2] || current_popuppeds[block][4])) {
		div_block.style.visibility = 'hidden';
		removeBodyClickListener();
	} else if(div_block!=null) {
		auto_hide_blocks();
		div_block.style.visibility = 'visible';
		addBodyClickListener();
	}
	 		
	if((current_popuppeds[block][0]!="") && (current_popuppeds[block][0]!=id)){
		var div_block=document.getElementById(current_popuppeds[block][1]+current_popuppeds[block][0]);
	 	div_block.style.visibility = 'hidden';
		removeBodyClickListener();
	}

	//change_visibility(current_popuppeds[block][1]);
	 		
	current_popuppeds[block][0]=id;
}

/*
function change_visibility(elementId) {
	if (elementId == "search-type_") {
		var elementObject = document.getElementById(elementId);
		if (elementObject != null) {
				elementObject.disabled = false;
		}
	}
}
*/

function auto_hide_blocks(){
	var i=0;
	for(i=0;i<current_popuppeds.length;i++){
		if(current_popuppeds[i][3] && current_popuppeds[i][0] != ""){
			var div_block=document.getElementById(current_popuppeds[i][1]+current_popuppeds[i][0]);
			if(div_block!=null) { 
				div_block.style.visibility = 'hidden';
 				//change_visibility(current_popuppeds[i][1]);
			}
		}
	}
	removeBodyClickListener();
}

function hide_all_blocks(event){
	if((event.type=='mousedown'&&event.button==0) || event == 'mousedown'){
		var i=0;
		for(i=0;i<current_popuppeds.length;i++){
			if(current_popuppeds[i][2] &&  current_popuppeds[i][0] != ""){
 				var div_block=document.getElementById(current_popuppeds[i][1]+current_popuppeds[i][0]);
 				if(div_block!=null)div_block.style.visibility = 'hidden';
 				//change_visibility(current_popuppeds[i][1]);
			}
		}
		removeBodyClickListener();
	}
	return(true);
}											

function hide_all_blocks_listener() {
	hide_all_blocks('mousedown');
}

function cancelBubbleEvent(elementObject, event) {
	event.cancelBubble=true;
	if (event.stopImmediatePropagation) {
			event.stopImmediatePropagation();
	}
	if (event.stopPropagation) {
		event.stopPropagation();
	}
	if (elementObject.stopPropagation) {
		elementObject.stopPropagation();
	}
	
	return false;
}


function addBodyClickListener() {
	AttachEvent(document.body, 'mousedown', hide_all_blocks_listener, false);
}

function removeBodyClickListener() {
	if (document.body.removeEventListener){ //Mozilla
		document.body.removeEventListener("mousedown", hide_all_blocks_listener, false); 
	} else if (document.detachEvent){ //IE
		document.body.detachEvent('mousedown', hide_all_blocks_listener);
	}
}


function AttachEvent(obj,evt,fnc,useCapture){
	if (!useCapture) useCapture=false;
	if (obj.addEventListener){
		obj.addEventListener(evt,fnc,useCapture);
		return true;
	} else if (obj.attachEvent) return obj.attachEvent("on"+evt,fnc);
	else{
		MyAttachEvent(obj,evt,fnc);
		obj['on'+evt]=function(){ MyFireEvent(obj,evt) };
	}
} 

//The following are for browsers like NS4 or IE5Mac which don't support either
//attachEvent or addEventListener
function MyAttachEvent(obj,evt,fnc){
	if (!obj.myEvents) obj.myEvents={};
	if (!obj.myEvents[evt]) obj.myEvents[evt]=[];
	var evts = obj.myEvents[evt];
	evts[evts.length]=fnc;
}
function MyFireEvent(obj,evt){
	if (!obj || !obj.myEvents || !obj.myEvents[evt]) return;
	var evts = obj.myEvents[evt];
	for (var i=0,len=evts.length;i<len;i++) evts[i]();
}
//---------------------------------------------------------------------

function poppuperSearchType(elementObject, event) {
//	if (!IE || IE70) {
//		elementObject.size=4;
//		elementObject.size=0;
//	}
//	if (!FF15 && !safari419_3) {
	//	elementObject.disabled = true;
//	}
	show_hide_block('0','search-type');
	cancelBubbleEvent(elementObject, event);
	//elementObject.blur();
	//elementObject.disabled = false;
	return false;
}



function poppuperCategory(elementObject, event) {
//	if (!IE || IE70) {
//		elementObject.size=4;
//		elementObject.size=0;
//	}
//	if (!FF15 && !safari419_3) {
	//	elementObject.disabled = true;
//	}
	show_hide_block('1','category');
	cancelBubbleEvent(elementObject, event);
	//elementObject.blur();
	//elementObject.disabled = false;
	return false;
}

function poppuperStyle(elementObject, event) {
//	if (!IE || IE70) {
//		elementObject.size=4;
//		elementObject.size=0;
//	}
//	if (!FF15 && !safari419_3) {
	//	elementObject.disabled = true;
//	}
	show_hide_block('2','style');
	cancelBubbleEvent(elementObject, event);
	//elementObject.blur();
	//elementObject.disabled = false;
	return false;
}

function poppuperAuthor(elementObject, event) {
//	if (!IE || IE70) {
//		elementObject.size=4;
//		elementObject.size=0;
//	}
//	if (!FF15 && !safari419_3) {
	//	elementObject.disabled = true;
//	}
	show_hide_block('3','author');
	cancelBubbleEvent(elementObject, event);
	//elementObject.blur();
	//elementObject.disabled = false;
	return false;
}