/*

	[Discuz!] (C)2001-2007 Comsenz Inc.

	This is NOT a freeware, use is subject to license terms



	$RCSfile: common.js,v $

	$Revision: 1.103 $

	$Date: 2007/07/30 09:16:52 $

*/



var lang = new Array();

var userAgent = navigator.userAgent.toLowerCase();

var is_opera = userAgent.indexOf('opera') != -1 && opera.version();

var is_moz = (navigator.product == 'Gecko') && userAgent.substr(userAgent.indexOf('firefox') + 8, 3);

var is_ie = (userAgent.indexOf('msie') != -1 && !is_opera) && userAgent.substr(userAgent.indexOf('msie') + 5, 3);



function $(id) {

	return document.getElementById(id);

}



function checkall(form, prefix, checkall) {

	var checkall = checkall ? checkall : 'chkall';

	for(var i = 0; i < form.elements.length; i++) {

		var e = form.elements[i];

		if(e.name && e.name != checkall && (!prefix || (prefix && e.name.match(prefix)))) {

			e.checked = form.elements[checkall].checked;

		}

	}

}



function doane(event) {

	e = event ? event : window.event;

	if(is_ie) {

		e.returnValue = false;

		e.cancelBubble = true;

	} else if(e) {

		e.stopPropagation();

		e.preventDefault();

	}

}



function fetchCheckbox(cbn) {

	return $(cbn) && $(cbn).checked == true ? 1 : 0;

}



function getcookie(name) {

	var cookie_start = document.cookie.indexOf(name);

	var cookie_end = document.cookie.indexOf(";", cookie_start);

	return cookie_start == -1 ? '' : unescape(document.cookie.substring(cookie_start + name.length + 1, (cookie_end > cookie_start ? cookie_end : document.cookie.length)));

}



function thumbImg(obj) {

	var zw = obj.width;

	var zh = obj.height;

	if(is_ie && zw == 0 && zh == 0) {

		var matches

		re = /width=(["']?)(\d+)(\1)/i

		matches = re.exec(obj.outerHTML);

		zw = matches[2];

		re = /height=(["']?)(\d+)(\1)/i

		matches = re.exec(obj.outerHTML);

		zh = matches[2];

	}

	obj.resized = true;

	obj.style.width = zw + 'px';

	obj.style.height = 'auto';

	if(obj.offsetHeight > zh) {

		obj.style.height = zh + 'px';

		obj.style.width = 'auto';

	}

	if(is_ie) {

		var imgid = 'img_' + Math.random();

		obj.id = imgid;

		setTimeout('try {if ($(\''+imgid+'\').offsetHeight > '+zh+') {$(\''+imgid+'\').style.height = \''+zh+'px\';$(\''+imgid+'\').style.width = \'auto\';}} catch(e){}', 1000);

	}

	obj.onload = null;

}



function imgzoom(obj) {}



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 setcopy(text, alertmsg){

	if(is_ie) {

		clipboardData.setData('Text', text);

		alert(alertmsg);

	} else if(prompt('Press Ctrl+C Copy to Clipboard', text)) {

		alert(alertmsg);

	}

}



function isUndefined(variable) {

	return typeof variable == 'undefined' ? true : false;

}



function mb_strlen(str) {

	var len = 0;

	for(var i = 0; i < str.length; i++) {

		len += str.charCodeAt(i) < 0 || str.charCodeAt(i) > 255 ? (charset == 'utf-8' ? 3 : 2) : 1;

	}

	return len;

}



function setcookie(cookieName, cookieValue, seconds, path, domain, secure) {

	var expires = new Date();

	expires.setTime(expires.getTime() + seconds);

	document.cookie = escape(cookieName) + '=' + escape(cookieValue)

		+ (expires ? '; expires=' + expires.toGMTString() : '')

		+ (path ? '; path=' + path : '/')

		+ (domain ? '; domain=' + domain : '')

		+ (secure ? '; secure' : '');

}



function strlen(str) {

	return (is_ie && str.indexOf('\n') != -1) ? str.replace(/\r?\n/g, '_').length : str.length;

}



function updatestring(str1, str2, clear) {

	str2 = '_' + str2 + '_';

	return clear ? str1.replace(str2, '') : (str1.indexOf(str2) == -1 ? str1 + str2 : str1);

}



function toggle_collapse(objname, noimg) {

	var obj = $(objname);

	obj.style.display = obj.style.display == '' ? 'none' : '';

	if(!noimg) {

		var img = $(objname + '_img');

		img.src = img.src.indexOf('_yes.gif') == -1 ? img.src.replace(/_no\.gif/, '_yes\.gif') : img.src.replace(/_yes\.gif/, '_no\.gif')

	}

	var collapsed = getcookie('discuz_collapse');

	collapsed =  updatestring(collapsed, objname, !obj.style.display);

	setcookie('discuz_collapse', collapsed, (collapsed ? 86400 * 30 : -(86400 * 30 * 1000)));

}



function trim(str) {

	return (str + '').replace(/(\s+)$/g, '').replace(/^\s+/g, '');

}



function updateseccode() {

	type = seccodedata[2];

	var rand = Math.random();

	if(type == 2) {

		$('seccodeimage').innerHTML = '<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" width="' + seccodedata[0] + '" height="' + seccodedata[1] + '" align="middle">'

			+ '<param name="allowScriptAccess" value="sameDomain" /><param name="movie" value="seccode.php?update=' + rand + '" /><param name="quality" value="high" /><param name="wmode" value="transparent" /><param name="bgcolor" value="#ffffff" />'

			+ '<embed src="seccode.php?update=' + rand + '" quality="high" wmode="transparent" bgcolor="#ffffff" width="' + seccodedata[0] + '" height="' + seccodedata[1] + '" align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" /></object>';

	} else {

		$('seccodeimage').innerHTML = '<img id="seccode" onclick="updateseccode()" width="' + seccodedata[0] + '" height="' + seccodedata[1] + '" src="seccode.php?update=' + rand + '" class="absmiddle" alt="" />';

	}

}



function updatesecqaa() {

	var x = new Ajax();

	x.get('ajax.php?action=updatesecqaa&inajax=1', function(s) {

		$('secquestion').innerHTML = s;

	});

}



function _attachEvent(obj, evt, func) {

	if(obj.addEventListener) {

		obj.addEventListener(evt, func, false);

	} else if(obj.attachEvent) {

		obj.attachEvent("on" + evt, func);

	}

}