var is_dom = (document.getElementById) ? true : false;
var is_ie  = (document.all) ? true : false;
var is_ie4 = (!is_dom && is_ie) ? true : false;
var is_nn  = (document.layers) ? true : false;
var is_moz = (is_dom && (navigator.appName=="Netscape")) ? true : false;
var is_opr = (is_dom && window.opera) ? true : false;
var is_op7 = (is_opr && document.readyState) ? true : false;


function getById(id) {
	if (is_dom) {
		return document.getElementById(id);
	} else if (is_ie) {
		return document.all[id];
	} else if (is_nn) {
		return document.layers[id];
	}
	return null;
}

function show_div(name) {
	var id = getById(name);
	if (!id) return;

	if (id.style) {
		id.style.display = "";
	} else {
		id.visibility = "show";
	}
}

function hide_div(name) {
	var id = getById(name);
	if (!id) return;

	if (id.style) {
		id.style.display = "none";
	} else {
		id.visibility = "none";
	}
}

function swap_div(name) {
	var id = getById(name);
	if (!id) return;

	if (id.style) {
		if (id.style.display == "none") id.style.display = "";
		else id.style.display = "none";
	} else {
		if (id.visibility == "none") id.visibility = "show";
		else id.visibility = "none";
	}
}

function flip_div(name1,name2) {
	var id1 = getById(name1);
	var id2 = getById(name2);
	if (!id1 || !id2) return;

	if (id1.style) {
		if (id1.style.display == 'none') {
			id1.style.display = '';
			id2.style.display = 'none';
		} else {
			id1.style.display = 'none';
			id2.style.display = '';
		}
	} else {
		if (id1.visibility == 'none') {
			id1.visibility = 'show';
			id2.visibility = 'none';
		} else {
			id1.visibility = 'none';
			id2.visibility = 'show';
		}
	}
}




document.onclick = float_menu_close;

var float_menus    = Array();
var float_menu_id  = '';
var float_menu_num = 0;

function reg_float_menu(id,menu_div,on_open_callback)
{
	var o = getById(id);
	var d = getById(menu_div);
	if (!o || !d) return;

    o.onclick = _event_menu_onclick;
    d.onclick = _cancel_bubble;

    float_menus[id] = Array(id,menu_div,on_open_callback);

    float_menu_num ++;
    return true;
}


function _cancel_bubble(obj, extra)
{
	if ( ! obj || is_ie)
	{
		if ( extra )
		{
			window.event.returnValue = false;
		}
		window.event.cancelBubble = true;
		return window.event;
	}
	else
	{
		if (obj.target.type == 'submit')
		{
			obj.target.form.submit();
		}
		obj.stopPropagation();
		if ( extra )
		{
			obj.preventDefault();
		}
		return obj;
	}
}

function _event_menu_onclick(e)
{
	e = _cancel_bubble(e, true);
	float_menu_open(this);
}


function float_menu_open(e)
{
	var openmenu = float_menu_id;

    if (typeof(float_menus[e.id]) == 'undefined')
    {
    	return false;
    }

	float_menu_close();

	if ( openmenu == e.id )
	{
		return false;
	}

	var div_id      = getById(float_menus[e.id][1]);
	var obj_id      = getById(float_menus[e.id][0]);

    if (!div_id || !obj_id) return false;

    if (typeof(float_menus[e.id][2]) == 'function')
    {
		float_menus[e.id][2](e.id);
    }

	var left_px     = _get_obj_leftpos(obj_id);
	var top_px      = _get_obj_toppos(obj_id) + e.offsetHeight;

	float_menu_id   = e.id;

	var width = parseInt( div_id.style.width ) ? parseInt( div_id.style.width ) : div_id.offsetWidth;

	if ( (left_px + width) >= document.body.clientWidth )
	{
		left_px = left_px + e.offsetWidth - width;
	}

	div_id.style.left    = left_px + "px";
	div_id.style.top     = top_px  + "px";
	div_id.style.zIndex  = 100;
	div_id.style.display = "";

	if ( is_ie )
	{
		if (( iframeobj = getById( 'iframe_hidden') ) != null)
		{
			iframeobj.scrolling      = 'no';
			iframeobj.frameborder    = 'no';
			iframeobj.style.position = 'absolute';
			iframeobj.style.width    = parseInt(div_id.offsetWidth)  + 'px';
			iframeobj.style.height   = parseInt(div_id.offsetHeight) + 'px';
			iframeobj.style.top      = parseInt(div_id.style.top) + 'px';
			iframeobj.style.left     = parseInt(div_id.style.left) + 'px';
			iframeobj.style.zIndex   = 99;
			iframeobj.style.display  = '';
		}
	}

	return false;
}


function float_menu_close()
{
	if ( float_menu_id != '' )
	{
		getById(float_menus[float_menu_id][1]).style.display = "none";

		if ( is_ie )
		{
			iframeobj = getById( 'iframe_hidden' );
			if (iframeobj) iframeobj.style.display = "none";
		}
	}

	float_menu_id = '';
}


function _get_obj_leftpos(obj)
{
	var left = obj.offsetLeft;

	while( (obj = obj.offsetParent) != null )
	{
		left += obj.offsetLeft;
	}

	return left;
}

function _get_obj_toppos(obj)
{
	var top = obj.offsetTop;

	while( (obj = obj.offsetParent) != null )
	{
		top += obj.offsetTop;
	}

	return top;
}





// ----------------------------------------
// jpage_jump.js
// ----------------------------------------
var pj_total_posts = 0;
var pj_per_page    = 0;
var pj_base_url    = '';
var pj_cur_st      = 0;


function do_page_jump() {
	var o = getById('goto_page_jump');
	if (!o) return;

	var pages    = 1;
	var userPage = parseInt(o.value);
    pj_cur_st    = parseInt(pj_cur_st);

	if ( pj_total_posts % pj_per_page == 0 ) {
		pages = pj_total_posts / pj_per_page;
	} else {
		pages = Math.ceil( pj_total_posts / pj_per_page );
	}

	url_bit = pj_base_url.replace( new RegExp( "&", "g" ) , '&' );

	if ( userPage > 0  )
	{
		if ( userPage < 1 ) {
			userPage = 1;
		}
		if ( userPage > pages ) {
			userPage = pages;
		}
		if ( userPage == 1 ) {
			start = 0;
		} else {
			start = (userPage - 1) * pj_per_page;
		}

        if (start != pj_cur_st) {
			window.location = url_bit + "&st=" + start;
			return false;
		}
	}
}



// ----------------------------------------
// jreply_form.js
// ----------------------------------------

function ins(name){
	if (name != "") paste("[b]"+name+"[/b]"+"\n",1);
}

function Insert(text){
	if (text!="") paste("[quote]"+text+"[/quote]\n", 0);
}

function paste(text, flag){
	if (document.REPLIER) {
		if ((document.selection)&&(flag)) {
			document.REPLIER.Post.focus();
			document.REPLIER.document.selection.createRange().text = text;
		} else document.REPLIER.Post.value += text;
	}
}

function get_selection() {
	if (document.getSelection){
		selection = document.getSelection();
		selection = selection.replace(/\r\n\r\n/gi, "_doublecaret_");
		selection = selection.replace(/\r\n/gi, " ");
    	while (selection.indexOf("  ") !=-1) selection = selection.replace(/  /gi, "");
		selection = selection.replace(/_doublecaret_/gi, "\r\n\r\n");
	  } else selection = document.selection.createRange().text;
}