kindeditor链接添加SEO rel nofollow

	'link.url' : 'URL',
	'link.linkType' : '打开类型',
	'link.rel' : '不跟踪链接',///////新增配置
	'link.newWindow' : '新窗口',

/*******************************************************************************
* KindEditor - WYSIWYG HTML Editor for Internet
* Copyright (C) 2006-2011 kindsoft.net
*
* @author Roddy <luolonghao@gmail.com>
* @site http://www.kindsoft.net/
* @licence http://www.kindsoft.net/license.php
*******************************************************************************/
KindEditor.plugin('link', function(K) {
	var self = this, name = 'link';
	self.plugin.link = {
		edit : function() {
			var lang = self.lang(name + '.'),
				html = '<div style="padding:20px;">' +
					//url
					'<div class="ke-dialog-row">' +
					'<label for="keUrl" style="width:60px;">' + lang.url + '</label>' +
					'<input class="ke-input-text" type="text" id="keUrl" name="url" value="" style="width:260px;" /></div>' +
					//type
					'<div class="ke-dialog-row"">' +
					'<label for="keType" style="width:60px;">' + lang.linkType + '</label>' +
					'<select id="keType" name="type"></select>' +
					'</div>' +
					//follow////////////////SEO优化rel nofollow项
					'<div class="ke-dialog-row"">' +
					'<label for="keType" style="width:60px;">' +( lang.rel||'nofollow') + '</label>' +
					'<input class="ke-input-text" type="checkbox" name="cbRel" />' +
					'</div>' +
					'</div>',
				dialog = self.createDialog({
					name : name,
					width : 450,
					title : self.lang(name),
					body : html,
					yesBtn : {
						name : self.lang('yes'),
						click : function(e) {
							var url = K.trim(urlBox.val());
							if (url == 'http://' || K.invalidUrl(url)) {
								alert(self.lang('invalidUrl'));
								urlBox[0].focus();
								return;
							}
							self.exec('createlink', url, typeBox.val(), cbRel.checked).hideDialog().focus();////////////
						}
					}
				}),
				div = dialog.div,
				urlBox = K('input[name="url"]', div),
				typeBox = K('select[name="type"]', div),
                cbRel = K('input[name="cbRel"]', div)[0];////////////////////
			urlBox.val('http://');
			typeBox[0].options[0] = new Option(lang.newWindow, '_blank');
			typeBox[0].options[1] = new Option(lang.selfWindow, '');
			self.cmd.selection();
			var a = self.plugin.getSelectedLink();
			if (a) {
				self.cmd.range.selectNode(a[0]);
				self.cmd.select();
				urlBox.val(a.attr('data-ke-src'));
				typeBox.val(a.attr('target'));
				cbRel.checked = a.attr('rel') == 'nofollow'//////////////////
			}
			urlBox[0].focus();
			urlBox[0].select();
		},
		'delete' : function() {
			self.exec('unlink', null);
		}
	};
	self.clickToolbar(name, self.plugin.link.edit);
});

/*******************************************************************************
* KindEditor - WYSIWYG HTML Editor for Internet
* Copyright (C) 2006-2011 kindsoft.net
*
* @author Roddy <luolonghao@gmail.com>
* @site http://www.kindsoft.net/
* @licence http://www.kindsoft.net/license.php
*******************************************************************************/
KindEditor.plugin('clearhtml', function(K) {
	var self = this, name = 'clearhtml';
	self.clickToolbar(name, function() {
		self.focus();
		var html = self.html();
		html = html.replace(/(<script[^>]*>)([\s\S]*?)(<\/script>)/ig, '');
		html = html.replace(/(<style[^>]*>)([\s\S]*?)(<\/style>)/ig, '');
		html = K.formatHtml(html, {
			a : ['href', 'target','rel'],///////////保留rel属性，要不切换源代码时会被干掉这个属性
			embed : ['src', 'width', 'height', 'type', 'loop', 'autostart', 'quality', '.width', '.height', 'align', 'allowscriptaccess'],
			img : ['src', 'width', 'height', 'border', 'alt', 'title', '.width', '.height'],
			table : ['border'],
			'td,th' : ['rowspan', 'colspan'],
			'div,hr,br,tbody,tr,p,ol,ul,li,blockquote,h1,h2,h3,h4,h5,h6' : []
		});
		self.html(html);
		self.cmd.selection(true);
		self.addBookmark();
	});
});

//createlink:function(a,b){
//==>注意参数a,b不同版本可能不一样
createlink:function(a,b,nofollow){