var BROWSER = {};
var USERAGENT = navigator.userAgent.toLowerCase();
BROWSER.ie = window.ActiveXObject && USERAGENT.indexOf('msie') != -1 && USERAGENT.substr(USERAGENT.indexOf('msie') + 5, 3);
BROWSER.firefox = document.getBoxObjectFor && USERAGENT.indexOf('firefox') != -1 && USERAGENT.substr(USERAGENT.indexOf('firefox') + 8, 3);
BROWSER.chrome = window.MessageEvent && !document.getBoxObjectFor && USERAGENT.indexOf('chrome') != -1 && USERAGENT.substr(USERAGENT.indexOf('chrome') + 7, 10);
BROWSER.opera = window.opera && opera.version();
BROWSER.safari = window.openDatabase && USERAGENT.indexOf('safari') != -1 && USERAGENT.substr(USERAGENT.indexOf('safari') + 7, 8);
BROWSER.other = !BROWSER.ie && !BROWSER.firefox && !BROWSER.chrome && !BROWSER.opera && !BROWSER.safari;
BROWSER.firefox = BROWSER.chrome ? 1 : BROWSER.firefox;

var JSMENU = [];
JSMENU['active'] = [];
JSMENU['timer'] = [];
JSMENU['layer'] = 0;
JSMENU['zIndex'] = {'win':200,'menu':300,'prompt':400,'dialog':500};

function isUndefined(variable) {
	return typeof variable == 'undefined' ? true : false;
}
function in_array(needle, haystack) {
	if(typeof needle == 'string' || typeof needle == 'number') {
		for(var i in haystack) {
			if(haystack[i] == needle) {
					return true;
			}
		}
	}
	return false;
}

function doane(event) {
	e = event ? event : window.event;
	if(!e) return;
	if(BROWSER.ie) {
		e.returnValue = false;
		e.cancelBubble = true;
	} else if(e) {
		e.stopPropagation();
		e.preventDefault();
	}
}
function ajaxmenu(ctrlObj,  pos, recall) {
	
	var ctrlid = ctrlObj.id;
	if(!ctrlid) {
		ctrlid = ctrlObj.id = 'ajaxid_' + Math.random();
	}
	var menuid = ctrlid + '_menu';
	var menu = $(menuid);	
	if(isUndefined(pos)) pos = '43';
	var func = function(Request) {	
		var data = Request.responseText;
		menu.innerHTML = data;			
		showMenu({'ctrlid':ctrlid,'pos':pos,'layer':2});		
		if(typeof recall == 'function') {
			recall();
		} else {
			eval(recall);
		}
	};

	if(menu) {		
		if(menu.style.display == '') {
			//menu.hide();
			hideMenu(menuid);
		} else {
			func();
		}
	} else {	
	
		menu = document.createElement('div');
		menu.id = menuid;
		menu.style.display = 'none';
		menu.className = 'popupmenu_popup';
		menu.innerHTML = '<div class="popupmenu_option" id="' + menuid + '_content"></div>';
		$('append_parent').appendChild(menu);		
		
		var actUrl=!isUndefined(ctrlObj.href) ? ctrlObj.href : ctrlObj.attributes['href'].value;			
		var pars ='&sid='+Math.random()*5;			
	    var myAjax = new Ajax.Request(actUrl,{ method: 'get',parameters: pars, onComplete: func});	
	}
}

function showMenu(v) {
		
	var ctrlid = showid = v['ctrlid'];	
	var menuid = showid + '_menu';	
	var ctrlObj = $(ctrlid);
	var menuObj = $(menuid);
	if(!menuObj) return;	
	var pos = isUndefined(v['pos']) ? '43' : v['pos'];
	var layer = isUndefined(v['layer']) ? 1 : v['layer'];
	var maxh = isUndefined(v['maxh']) ? 500 : v['maxh'];
	var zindex = isUndefined(v['zindex']) ? JSMENU['zIndex']['menu'] : v['zindex'];
	

	hideMenu(layer);
	
	if(!menuObj.initialized) {
		menuObj.initialized = true;
		menuObj.layer = layer;
		menuObj.style.position = 'absolute';
		menuObj.style.zIndex = zindex + layer;
		menuObj.onclick = function(e) {
			if(!e || BROWSER.ie) {
				window.event.cancelBubble = true;
				return window.event;
			} else {
				e.stopPropagation();
				return e;
			}
		};		
	}	
	menuObj.style.display = '';	
	
	setMenuPosition(showid, menuid, pos);	
	
	if(maxh && menuObj.scrollHeight > maxh) {
		menuObj.style.height = maxh + 'px';
		if(BROWSER.opera) {
			menuObj.style.overflow = 'auto';
		} else {
			menuObj.style.overflowY = 'auto';
		}
	}
}

function setMenuPosition(showid, menuid, pos) {
	var showObj = $(showid);
	var menuObj = menuid ? $(menuid) : $(showid + '_menu');
	if(isUndefined(pos)) pos = '43';
	var basePoint = parseInt(pos.substr(0, 1));
	var direction = parseInt(pos.substr(1, 1));

	var sxy = sx = sy = sw = sh = ml = mt = mw = mcw = mh = mch = bpl = bpt = 0;
	if(!menuObj || (basePoint > 0 && !showObj)) return;
	
	if(showObj) {
		sxy = fetchOffset(showObj);		
		sx = sxy['left'];
		sy = sxy['top'];
		sw = showObj.offsetWidth;
		sh = showObj.offsetHeight;
	}

	mw = menuObj.offsetWidth;
	mcw = menuObj.clientWidth;	
	mh = menuObj.offsetHeight;
	mch = menuObj.clientHeight;

	switch(basePoint) {
		case 1:
			bpl = sx;
			bpt = sy;
			break;
		/*case 2:
			bpl = sx + sw;
			bpt = sy;
			break;
		case 3:
			bpl = sx + sw;
			bpt = sy + sh;
			break;
		case 4:
			bpl = sx;
			bpt = sy + sh;
			break;*/
	}
	
	switch(direction) {
		/*case 0:
			menuObj.style.left = (document.body.clientWidth - menuObj.clientWidth) / 2 + 'px';
			mt = (document.documentElement.clientHeight - menuObj.clientHeight) / 2;
			break;
		case 1:
			ml = bpl - mw;
			mt = bpt - mh;
			break;*/
		case 2:
			ml = bpl;
			mt = bpt - mh;
			break;
		/*case 3:
			ml = bpl;
			mt = bpt;
			break;
		case 4:
			ml = bpl - mw;
			mt = bpt;
			break;*/
	}
/*	if(in_array(direction, [1, 4]) && ml < 0) {
		
		ml = bpl;
		if(in_array(basePoint, [1, 4])) ml += sw;
	} else if(ml + mw > document.documentElement.scrollLeft + document.body.clientWidth && sx >= mw) {
		alert('aaaaaa');
		ml = bpl - mw;
		if(in_array(basePoint, [2, 3])) ml -= sw;
	}
	if(in_array(direction, [1, 2]) && mt < 0) {
		
		mt = bpt;
		if(in_array(basePoint, [1, 2])) mt += sh;
	} else if(mt + mh > document.documentElement.scrollTop + document.documentElement.clientHeight && sy >= mh) {
		alert('bbbb');
		mt = bpt - mh;
		if(in_array(basePoint, [3, 4])) mt -= sh;
	}*/
/*	if(pos == '210') {
		ml += 69 - sw / 2;
		mt -= 5;
		if(showObj.tagName == 'TEXTAREA') {
			ml -= sw / 2;
			mt += sh / 2;
		}
	}
	if(direction == 0 || menuObj.scrolly) {
		
		if(BROWSER.ie && BROWSER.ie < 7) {
			if(direction == 0) mt += Math.max(document.documentElement.scrollTop, document.body.scrollTop);
		} else {
			if(menuObj.scrolly) mt -= Math.max(document.documentElement.scrollTop, document.body.scrollTop);
			menuObj.style.position = 'fixed';
		}
	}*/
	
	if(ml) menuObj.style.left = ml + 'px';
	if(mt) menuObj.style.top = mt + 'px';
	/*if(direction == 0 && BROWSER.ie && !document.documentElement.clientHeight) {
		
		menuObj.style.position = 'absolute';
		menuObj.style.top = (document.body.clientHeight - menuObj.clientHeight) / 2 + 'px';
	}
	if(menuObj.style.clip && !BROWSER.opera) {
	
		menuObj.style.clip = 'rect(auto, auto, auto, auto)';
	}*/
}

function fetchOffset(obj) {
	var left_offset = 0, top_offset = 0;

	if(obj.getBoundingClientRect){
		var rect = obj.getBoundingClientRect();
		var scrollTop = Math.max(document.documentElement.scrollTop, document.body.scrollTop);
		var scrollLeft = Math.max(document.documentElement.scrollLeft, document.body.scrollLeft);
		if(document.documentElement.dir == 'rtl') {
			scrollLeft = scrollLeft + document.documentElement.clientWidth - document.documentElement.scrollWidth;
		}
		left_offset = rect.left + scrollLeft - document.documentElement.clientLeft;
		top_offset = rect.top + scrollTop - document.documentElement.clientTop;
	}
	if(left_offset <= 0 || top_offset <= 0) {
		left_offset = obj.offsetLeft;
		top_offset = obj.offsetTop;
		while((obj = obj.offsetParent) != null) {
			left_offset += obj.offsetLeft;
			top_offset += obj.offsetTop;
		}
	}
	return { 'left' : left_offset, 'top' : top_offset };
}


function hideMenu(attr) {
	attr = isUndefined(attr) ? '' : attr;
	
	if(attr == '') {
		for(var i = 1; i <= JSMENU['layer']; i++) {
			hideMenu(i);
		}
		return;
	} else if(typeof attr == 'number') {
		
		for(var j in JSMENU['active'][attr]) {
			hideMenu(JSMENU['active'][attr][j]);
		}
		return;
	} else if(typeof attr == 'string') {
		var menuObj = $(attr);
		if(!menuObj ) return;
		clearTimeout(JSMENU['timer'][attr]);
		var hide = function() {			
			menuObj.style.display = 'none';		
			var tmp = [];
			for(var k in JSMENU['active'][menuObj.layer]) {
				if(attr != JSMENU['active'][menuObj.layer][k]) tmp.push(JSMENU['active'][menuObj.layer][k]);
			}
			JSMENU['active'][menuObj.layer] = tmp;
		};	
		hide();		
	}
}