/******************************************************************************
  Crossday Discuz! Board - Common Modules for Discuz!
  Copyright 2001-2006 Comsenz Inc. (http://www.comsenz.com)
*******************************************************************************/

// Sniffer based on http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html
var uagent    = navigator.userAgent.toLowerCase();
var is_safari = ( (uagent.indexOf('safari') != -1) || (navigator.vendor == "Apple Computer, Inc.") );
var is_opera  = (uagent.indexOf('opera') != -1);
var is_webtv  = (uagent.indexOf('webtv') != -1);
var is_ie     = ( (uagent.indexOf('msie') != -1) && (!is_opera) && (!is_safari) && (!is_webtv) );
var is_ie4    = ( (is_ie) && (uagent.indexOf("msie 4.") != -1) );
var is_moz    = (navigator.product == 'Gecko');
var is_ns     = ( (uagent.indexOf('compatible') == -1) && (uagent.indexOf('mozilla') != -1) && (!is_opera) && (!is_webtv) && (!is_safari) );
var is_ns4    = ( (is_ns) && (parseInt(navigator.appVersion) == 4) );
var is_kon    = (uagent.indexOf('konqueror') != -1);

var sPop = null;
var postSubmited = false;

document.write("<style type='text/css'id='defaultPopStyle'>");
document.write(".cPopText { font-family: Tahoma, Verdana; background-color: #FFFFCC; border: 1px #000000 solid; font-size: 12px; padding-right: 4px; padding-left: 4px; line-height: 18px; padding-top: 2px; padding-bottom: 2px; visibility: hidden;-moz-opacity:0.8;opacity:0.8; filter: Alpha(Opacity=80)}");

document.write("</style>");
document.write("<div id='popLayer' style='position:absolute;z-index:1000' class='cPopText'></div>");

function showPopupText(event) {
	if(event.srcElement) o = event.srcElement; else o = event.target;
	MouseX=event.clientX;
	MouseY=event.clientY;
	if(o.alt!=null && o.alt!="") { o.pop=o.alt;o.alt="" }
	if(o.title!=null && o.title!=""){ o.pop=o.title;o.title="" }
	if(o.pop!=sPop) {
		sPop=o.pop;
		if(sPop==null || sPop=="") {
			document.getElementById("popLayer").style.visibility="hidden";
		} else {
			if(o.dyclass!=null) popStyle=o.dyclass; else popStyle="cPopText";
			document.getElementById("popLayer").style.visibility="visible";
			showIt();
		}
	}
}

function showIt() {
	var theX = 0,theY = 0;
	if(window.innerWidth){
		theX = window.innerWidth;
	}else if(document.documentElement&&document.documentElement.clientWidth){
		theX = document.documentElement.clientWidth;
	}else if(document.body){
		theX = document.body.clientWidth;
	}
	if(window.innerHeight){
		theY = window.innerHeight;
	}else if(document.documentElement&&document.documentElement.clientHeight){
		theY = document.documentElement.clientHeight;
	}else if(document.body){
		theY = document.body.clientHeight;
	}
	var scrollLeft,scrollTop;

	if(window.pageYOffset){
		scrollTop=window.pageYOffset
	}else if(document.documentElement&&document.documentElement.scrollTop){
		scrollTop=document.documentElement.scrollTop;
	}else if(document.body){
		scrollTop=document.body.scrollTop;
	}

	if(window.pageXOffset){
		scrollLeft=window.pageXOffset
	}else if(document.documentElement&&document.documentElement.scrollLeft){
		scrollLeft=document.documentElement.scrollLeft;
	}else if(document.body){
		scrollLeft=document.body.scrollLeft;
	}
	document.getElementById("popLayer").className=popStyle;
	document.getElementById("popLayer").innerHTML=sPop.replace(/<(.*)>/g,"&lt;$1&gt;").replace(/\n/g,"<br>");;
	popWidth=document.getElementById("popLayer").clientWidth;
	popHeight=document.getElementById("popLayer").clientHeight;
	if(MouseX+12+popWidth>theX) popLeftAdjust=-popWidth-24; else popLeftAdjust=0;
	if(MouseY+12+popHeight>theY) popTopAdjust=-popHeight-24; else popTopAdjust=0;

	document.getElementById("popLayer").style.left=MouseX+12+scrollLeft+popLeftAdjust+'px';
	document.getElementById("popLayer").style.top=MouseY+12+scrollTop+popTopAdjust+'px';
}

function ctlent(event) {
	if(postSubmited == false && (event.ctrlKey && event.keyCode == 13) || (event.altKey && event.keyCode == 83)) {
		if(this.document.input.pmsubmit) {
			postSubmited = true;
			this.document.input.pmsubmit.disabled = true;
			this.document.input.submit();
		} else if(validate(this.document.input)) {
			postSubmited = true;
			if(this.document.input.topicsubmit) this.document.input.topicsubmit.disabled = true;
			if(this.document.input.replysubmit) this.document.input.replysubmit.disabled = true;
			if(this.document.input.editsubmit) this.document.input.editsubmit.disabled = true;
			this.document.input.submit();
		}
	}
}

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 != checkall && (!prefix || (prefix && e.name.match(prefix)))) {
			e.checked = form.elements[checkall].checked;
		}
	}
}

function findobj(n, d) {
	var p, i, x;
	if(!d) d = document;
	if((p = n.indexOf("?"))>0 && parent.frames.length) {
		d = parent.frames[n.substring(p + 1)].document;
		n = n.substring(0, p);
	}
	if(x != d[n] && d.all) x = d.all[n];
	for(i = 0; !x && i < d.forms.length; i++) x = d.forms[i][n];
	for(i = 0; !x && d.layers && i < d.layers.length; i++) x = findobj(n, d.layers[i].document);
	if(!x && document.getElementById) x = document.getElementById(n);
	return x;
}


function copycode(obj) {
	var rng = document.body.createTextRange();
	rng.moveToElementText(obj);
	rng.scrollIntoView();
	rng.select();
	rng.execCommand("Copy");
	rng.collapse(false);
}

function toggle_collapse(objname) {
	obj = findobj(objname);
	img = findobj(objname+"_img");
	collapsed = getcookie("discuz_collapse");
	cookie_start = collapsed ? collapsed.indexOf(objname) : -1;
	cookie_end = cookie_start + objname.length + 1;

	if(obj.style.display == "none") {
		obj.style.display = "";
		img_re = new RegExp("_yes\\.gif$");
		img.src = img.src.replace(img_re, '_no.gif');
		if(cookie_start != -1) collapsed = collapsed.substring(0, cookie_start) + collapsed.substring(cookie_end, collapsed.length);
	} else {
		obj.style.display = "none";
		img_re = new RegExp("_no\\.gif$");
		img.src = img.src.replace(img_re, '_yes.gif');
		if(cookie_start == -1) collapsed = collapsed + objname + " ";
	}

	expires = new Date();
	expires.setTime(expires.getTime() + (collapsed ? 86400 * 30 : -(86400 * 30 * 1000)));
	document.cookie = "discuz_collapse=" + escape(collapsed) + "; expires=" + expires.toGMTString() + "; path=/";
}

function imgzoom(o) {
	if(!o) o = this;
	if(event.ctrlKey) {
		var zoom = parseInt(o.style.zoom, 10) || 100;
		zoom -= event.wheelDelta / 12;
		if(zoom > 0) {
			o.style.zoom = zoom + '%';
		}
		return false;
	} else {
		return true;
	}
}

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 ShowImages(obj) {
	var maxWidth = screen.width * 0.5;
	if(!obj) return False;
	obj.style.display = '';
	var imgalt = "本图片大小 ( " + obj.width + ' X ' + obj.height + ' )';

	if(obj.width == '' || obj.width > maxWidth) {
		imgalt = imgalt + ', 点击图片打开新窗口浏览';
		obj.width = maxWidth;
		if(is_ie || is_opera) {
			obj.outerHTML = '<div align=left><a href="' + obj.src + '" target="_blank"><img src="' + obj.src + '" alt="' + imgalt + '" width="' + maxWidth + '" border="0" onmousewheel="return imgzoom(this)"></a></div>';
		} else {
			function openbbimages(e){
	 			winobj = window.open(this.src);
	 			return;
			}

			obj.alt = imgalt;
			obj.style.cursor='hand';
			obj.onclick = openbbimages;

		}
	} else {
		obj.onmousewheel = imgzoom;
		obj.alt = imgalt;
	}
	return;
}
function checkAll(str,checked) {
    var a = document.getElementsByName(str + '[]');
    var n = a.length;
    for (var i = 0; i < n; i++) {
        a[i].checked = checked;
    }
    em_size(str);
}
function download(str, i, first) {
    var a = document.getElementsByName(str);
    var n = a.length;

    for (var i = i; i < n; i++) {
        if(a[i].checked) {
            window.location=a[i].value;
            if (first)
                timeout = 6000;
            else
                timeout = 500;
            i++;
            window.setTimeout("download('"+str+"', "+i+", 0)", timeout);
            break;
        }
    }

}

function copy(str) {
    var a = document.getElementsByName(str);
    var n = a.length;
    var ed2kcopy = "";
    for (var i = 0; i < n; i++) {
        if(a[i].checked) {
            ed2kcopy += a[i].value;
            ed2kcopy += "\r\n";
        }
    }
    copyToClipboard(ed2kcopy);
}
function em_size(str) {
    var a = document.getElementsByName(str + '[]');
    var n = a.length;
    try {
        var input_checkall = document.getElementById("checkall_"+str);
        var size = 0;
        input_checkall.checked = true ;
        for (var i=0; i < n; i++) {
            if (a[i].checked) {
                var piecesArray = a[i].value.split( "|" );
                size += piecesArray[3]*1;
            } else {
                input_checkall.checked = false;
            }
        }
        test = document.getElementById("size_"+str);
        test.innerHTML = gen_size(size, 3, 1);
    } catch (e) {

    }
}

function gen_size(val, li, sepa ) {
    sep = Math.pow(10, sepa); 
    li = Math.pow(10, li); 
    retval  = val;
    unit    = 'Bytes';
    if (val >= li*1000000000) {
        val = Math.round( val / (1099511627776/sep) ) / sep;
        unit  = 'TB';
    } else if (val >= li*1000000) {
        val = Math.round( val / (1073741824/sep) ) / sep;
        unit  = 'GB';
    } else if (val >= li*1000) {
        val = Math.round( val / (1048576/sep) ) / sep;
        unit  = 'MB';
    } else if (val >= li) {
        val = Math.round( val / (1024/sep) ) / sep;
        unit  = 'KB';
    }
    return val + unit;
}
function copyToClipboard(txt) {
	if(window.clipboardData) {
   		window.clipboardData.clearData();
   		window.clipboardData.setData("Text", txt);
	} else if(navigator.userAgent.indexOf("Opera") != -1) {
		window.location = txt;
	} else if (window.netscape) {
		try {
			netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
		} catch (e) {
			alert("signed.applets.codebase_principal_support");
		}
		var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
		if (!clip)
			return;
		var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
		if (!trans)
			return;
		trans.addDataFlavor('text/unicode');
		var str = new Object();
		var len = new Object();
		var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
		var copytext = txt;
		str.data = copytext;
		trans.setTransferData("text/unicode",str,copytext.length*2);
		var clipid = Components.interfaces.nsIClipboard;
		if (!clip)
			return false;
		clip.setData(trans,null,clipid.kGlobalClipboard);
	}
}
if(!document.onmouseover) {
	document.onmouseover = function(e) {
		if (!e) showPopupText(window.event); else showPopupText(e);
	};
}
function setlimit(value){
	setCookieth("bbs_photo_limit", value);
}

function setCookieth(name, value) {
	var today = new Date();
	var expires = new Date();
	expires.setTime(today.getTime() + 1000*60*60*24*365);
	document.cookie = name + "=" + escape(value) + "; path=/" + "; expires=" + expires.toGMTString();
}