https://www.taaonline.net/jmc-assets/crawler/crawler.js

1
2/* Text and/or Image Crawler Script v1.53 (c)2009-2012 John Davenport Scheuer
3   as first seen in http://www.dynamicdrive.com/forums/
4   username: jscheuer1 - This Notice Must Remain for Legal Use
5   updated: 4/2011 for random order option, more (see below)
6   */
7
8/* Update 4/2011 to v1.5 - Adds optional random property. Set it to true to use.
9   Fixes browser crash from empty crawlers, ad and image blocking software/routines.
10   Fixes behavior in some IE of breaking script if an image is missing.
11   Adds alt attributes to images without them to aid in diagnosis of missing/corrupt
12   images. This may be disabled with the new optional noAddedAlt property set to true.
13   Internal workings enhanced for greater speed of execution, less memory usage.
14   */
15
16/* Update 11/2011 - Detect and randomize td elements within a single table with a single tr */
17
18// updated 7/2012 to 1.51 for optional integration with 3rd party initializing scripts -
19// ref: http://www.dynamicdrive.com/forums/showthread.php?p=278161#post278161
20// updated 8/2012 to 1.52 for greater compatibility with IE in Quirks Mode
21
22/* Update 10/2012 to v1.53 - Adds optional persist property to have the crawler remember its
23   position and direction page to page and on page reload. To enable it in the marqueeInit set
24   persist: true,
25   */
26
27///////////////// No Need to Edit - Configuration is Done in the On Page marqueeInit call(s) /////////////////
28
29
30function marqueeInit(config){
31 if(!document.createElement) return;
32 marqueeInit.ar.push(config);
33 marqueeInit.run(config.uniqueid);
34}
35
36(function(){
37
38 if(!document.createElement) return;
39 
40 if(typeof opera === 'undefined'){window.opera = false;}
41
42 marqueeInit.ar = [];
43

44 document.write('<style type="text/css">.marquee{white-space:nowrap;overflow:hidden;visibility:hidden;}' +
45 '#marq_kill_marg_bord{border:none!important;margin:0!important;}<\/style>');
46 var c = 0, tTRE = [/^\s*$/, /^\s*/, /\s*$/, /[^\/]+$/],
47 req1 = {'position': 'relative', 'overflow': 'hidden'}, defaultconfig = {
48  style: { //default style object for marquee containers without configured style
49	'margin': '0 auto'
50  },
51  direction: 'left',
52  inc: 2, //default speed - pixel increment for each iteration of a marquee's movement
53  mouse: 'pause' //default mouseover behavior ('pause' 'cursor driven' or false)
54 }, dash, ie = false, oldie = 0, ie5 = false, iever = 0;
55 
56 /*@cc_on @*/
57 /*@if(@_jscript_version >= 5)
58 ie = true;
59 try{document.documentMode = 2000}catch(e){};
60 iever = Math.min(document.documentMode, navigator.appVersion.replace(/^.*MSIE (\d+\.\d+).*$/, '$1'));
61 if(iever < 6)
62  oldie = 1;
63 if(iever < 5.5){
64  Array.prototype.push = function(el){this[this.length] = el;};
65  ie5 = true;
66  dash = /(-(.))/;
67  String.prototype.encamel = function(s, m){
68   s = this;
69   while((m = dash.exec(s)))
70    s = s.replace(m[1], m[2].toUpperCase());
71   return s;
72  };
73 }
74 @end @*/
75
76 if(!ie5){
77  dash = /-(.)/g;
78  function toHump(a, b){return b.toUpperCase();};
79  String.prototype.encamel = function(){return this.replace(dash, toHump);};
80 }
81
82 if(ie && iever < 8){
83  marqueeInit.table = [];
84  window.attachEvent('onload', function(){
85   marqueeInit.OK = true;
86   var i = -1, limit = marqueeInit.table.length;
87   while(++i < limit)
88   marqueeInit.run(marqueeInit.table[i]);
89  });
90 }
91 
92 function intable(el){
93  while((el = el.parentNode))
94   if(el.tagName && el.tagName.toLowerCase() === 'table')
95    return true;
96   return false;
97 };
98
99 marqueeInit.run = function(id){
100   if(ie && !marqueeInit.OK && iever < 8 && intable(document.getElementById(id))){
101    marqueeInit.table.push(id);
102    return;
103   }
104   if(!document.getElementById(id))
105    setTimeout(function(){marqueeInit.run(id);}, 300);
106   else
107    new Marq(c++, document.getElementById(id));
108 }
109
110 function trimTags(tag){
111  var r = [], i = 0, e;
112  while((e = tag.firstChild) && e.nodeType === 3 && tTRE[0].test(e.nodeValue))
113   tag.removeChild(e);
114  while((e = tag.lastChild) && e.nodeType === 3 && tTRE[0].test(e.nodeValue))
115   tag.removeChild(e);
116  if((e = tag.firstChild) && e.nodeType === 3)
117   e.nodeValue = e.nodeValue.replace(tTRE[1], '');
118  if((e = tag.lastChild) && e.nodeType === 3)
119   e.nodeValue = e.nodeValue.replace(tTRE[2], '');
120  while((e = tag.firstChild))
121   r[i++] = tag.removeChild(e);
122  return r;
123 }
124
125 function randthem(tag){
126  var els = oldie? tag.all : tag.getElementsByTagName('*'), i = els.length, childels = [];
127  while (--i > -1){
128   if(els[i].parentNode === tag){
129    childels.push(els[i]);
130   }
131  }
132  childels.sort(function(){return 0.5 - Math.random();});
133  i = childels.length;
134  while (--i > -1){
135   tag.appendChild(childels[i]);
136  }
137 }
138
139 function Marq(c, tag){
140  var p, u, s, a, ims, ic, i, marqContent, cObj = this;
141  this.mq = marqueeInit.ar[c];
142  if(this.mq.random){
143   if(tag.getElementsByTagName && tag.getElementsByTagName('tr').length === 1 && tag.childNodes.length === 1){
144    randthem(tag.getElementsByTagName('tr')[0]);
145   } else {
146   randthem(tag);
147   }
148  }
149  for (p in defaultconfig)
150   if((this.mq.hasOwnProperty && !this.mq.hasOwnProperty(p)) || (!this.mq.hasOwnProperty && !this.mq[p]))
151    this.mq[p] = defaultconfig[p];
152  this.mq.direction = this.mq.persist && this.cookie.get(this.mq.uniqueid)? this.cookie.get(this.mq.uniqueid).split(':')[2] : this.mq.direction;
153  this.mq.style.width = !this.mq.style.width || isNaN(parseInt(this.mq.style.width))? '100%' : this.mq.style.width;
154  if(!tag.getElementsByTagName('img')[0])
155   this.mq.style.height = !this.mq.style.height || isNaN(parseInt(this.mq.style.height))? tag.offsetHeight + 3 + 'px' : this.mq.style.height;
156  else
157   this.mq.style.height = !this.mq.style.height || isNaN(parseInt(this.mq.style.height))? 'auto' : this.mq.style.height;
158  u = this.mq.style.width.split(/\d/);
159  this.cw = this.mq.style.width? [parseInt(this.mq.style.width), u[u.length - 1]] : ['a'];
160  marqContent = trimTags(tag);
161  tag.className = tag.id = '';
162  tag.removeAttribute('class', 0);
163  tag.removeAttribute('id', 0);
164  if(ie)
165   tag.removeAttribute('className', 0);
166  tag.appendChild(tag.cloneNode(false));
167  tag.className = ['marquee', c].join('');
168  tag.style.overflow = 'hidden';
169  this.c = tag.firstChild;
170  this.c.appendChild(this.c.cloneNode(false));
171  this.c.style.visibility = 'hidden';
172  a = [[req1, this.c.style], [this.mq.style, this.c.style]];
173  for (i = a.length - 1; i > -1; --i)
174   for (p in a[i][0])
175    if((a[i][0].hasOwnProperty && a[i][0].hasOwnProperty(p)) || (!a[i][0].hasOwnProperty))
176     a[i][1][p.encamel()] = a[i][0][p];
177  this.m = this.c.firstChild;
178  if(this.mq.mouse === 'pause'){
179   this.c.onmouseover = function(){cObj.mq.stopped = true;};
180   this.c.onmouseout = function(){cObj.mq.stopped = false;};
181  }
182  this.m.style.position = 'absolute';
183  this.m.style.left = '-10000000px';
184  this.m.style.whiteSpace = 'nowrap';
185  if(ie5) this.c.firstChild.appendChild((this.m = document.createElement('nobr')));
186  if(!this.mq.noAddedSpace)
187   this.m.appendChild(document.createTextNode('\xa0'));
188  for(i = 0; marqContent[i]; ++i)
189   this.m.appendChild(marqContent[i]);
190  if(ie5) this.m = this.c.firstChild;
191  ims = this.m.getElementsByTagName('img');
192  if(ims.length){
193   for(ic = 0, i = 0; i < ims.length; ++i){
194    ims[i].style.display = 'inline';
195    if(!ims[i].alt && !this.mq.noAddedAlt){
196     ims[i].alt = (tTRE[3].exec(ims[i].src)) || ('Image #' + [i + 1]);
197     if(!ims[i].title){ims[i].title = '';}
198    }
199    ims[i].style.display = 'inline';
200    ims[i].style.verticalAlign = ims[i].style.verticalAlign || 'top';
201    if(typeof ims[i].complete === 'boolean' && ims[i].complete)
202     ic++;
203    else {
204     ims[i].onload = ims[i].onerror = function(){
205       if(++ic === ims.length)
206        cObj.setup(c);
207      };
208    }
209     if(ic === ims.length)
210      this.setup(c);
211   }
212  }
213   else this.setup(c)
214 }
215
216  Marq.prototype.setup = function(c){
217  if(this.mq.setup) return;
218  this.mq.setup = this;
219  var s, w, cObj = this, exit = 10000;
220  if(this.c.style.height === 'auto')
221   this.c.style.height = this.m.offsetHeight + 4 + 'px';
222  this.c.appendChild(this.m.cloneNode(true));
223  this.m = [this.m, this.m.nextSibling];
224  if(typeof this.mq.initcontent === 'function'){
225   this.mq.initcontent.apply(this.mq, [this.m]);
226  }
227  if(this.mq.mouse === 'cursor driven'){
228   this.r = this.mq.neutral || 16;
229   this.sinc = this.mq.inc;
230   this.c.onmousemove = function(e){cObj.mq.stopped = false; cObj.directspeed(e)};
231   if(this.mq.moveatleast){
232    this.mq.inc = this.mq.moveatleast;
233    if(this.mq.savedirection){
234     if(this.mq.savedirection === 'reverse'){
235      this.c.onmouseout = function(e){
236       if(cObj.contains(e)) return;
237       cObj.mq.inc = cObj.mq.moveatleast;
238       cObj.mq.direction = cObj.mq.direction === 'right'? 'left' : 'right';};     
239     } else {
240      this.mq.savedirection = this.mq.direction;
241      this.c.onmouseout = function(e){
242       if(cObj.contains(e)) return;
243       cObj.mq.inc = cObj.mq.moveatleast;
244       cObj.mq.direction = cObj.mq.savedirection;};     
245    }
246    } else
247     this.c.onmouseout = function(e){if(!cObj.contains(e)) cObj.mq.inc = cObj.mq.moveatleast;};
248   }
249   else
250    this.c.onmouseout = function(e){if(!cObj.contains(e)) cObj.slowdeath();};
251  }
252  this.w = this.m[0].offsetWidth;
253  this.m[0].style.left = this.mq.persist && this.cookie.get(this.mq.uniqueid)? this.cookie.get(this.mq.uniqueid).split(':')[0] : 0;
254  this.c.id = 'marq_kill_marg_bord';
255  this.m[0].style.top = this.m[1].style.top = Math.floor((this.c.offsetHeight - this.m[0].offsetHeight) / 2 - oldie) + 'px';
256  this.c.id = '';
257  this.c.removeAttribute('id', 0);
258  this.m[1].style.left = this.mq.persist && this.cookie.get(this.mq.uniqueid)? this.cookie.get(this.mq.uniqueid).split(':')[1] : this.w + 'px';
259  s = this.mq.moveatleast? Math.max(this.mq.moveatleast, this.sinc) : (this.sinc || this.mq.inc);
260  while(this.c.offsetWidth > this.w - s && --exit){
261   w = isNaN(this.cw[0])? this.w - s : --this.cw[0];
262   if(w < 1 || this.w < Math.max(1, s)){break;}
263   this.c.style.width = isNaN(this.cw[0])? this.w - s + 'px' : --this.cw[0] + this.cw[1];
264  }
265  this.c.style.visibility = 'visible';
266  this.runit();
267  }
268  
269 Marq.prototype.slowdeath = function(){
270  var cObj = this;
271  if(this.mq.inc){
272   this.mq.inc -= 1;
273   this.timer = setTimeout(function(){cObj.slowdeath();}, 100);
274  }
275 }
276
277 Marq.prototype.runit = function(){
278  var cObj = this, d = this.mq.direction === 'right'? 1 : -1;
279  if(this.mq.stopped || this.mq.stopMarquee){
280   setTimeout(function(){cObj.runit();}, 300);
281   return;
282  }
283  if(this.mq.mouse != 'cursor driven')
284   this.mq.inc = Math.max(1, this.mq.inc);
285  if(d * parseInt(this.m[0].style.left) >= this.w)
286   this.m[0].style.left = parseInt(this.m[1].style.left) - d * this.w + 'px';
287  if(d * parseInt(this.m[1].style.left) >= this.w)
288   this.m[1].style.left = parseInt(this.m[0].style.left) - d * this.w + 'px';
289  this.m[0].style.left = parseInt(this.m[0].style.left) + d * this.mq.inc + 'px';
290  this.m[1].style.left = parseInt(this.m[1].style.left) + d * this.mq.inc + 'px';
291  if(window.opera && this.mq.persist){
292   this.cookie.set(this.mq.uniqueid, this.m[0].style.left + ':' + this.m[1].style.left + ':' + this.mq.direction);
293  }
294  setTimeout(function(){cObj.runit();}, 30 + (this.mq.addDelay || 0));
295 }
296
297 Marq.prototype.cookie = {
298  set: function(n, v, d){ // cook.set takes (name, value, optional_persist_days) - defaults to session if no days specified
299   if(d){var dt = new Date(); 
300    dt.setDate(dt.getDate() + d);
301   d = '; expires=' + dt.toGMTString();}
302   document.cookie = n + '=' + escape(v) + (d || '') + '; path=/';
303  },
304  get: function(n){ // cook.get takes (name)
305   var c = document.cookie.match('(^|;)\x20*' + n + '=([^;]*)');
306   return c? unescape(c[2]) : null;
307  },
308  kill: function(n){ // cook.kill takes (name)
309   cook.set(n, '', -1);
310  },
311  killall: function(){ // cook.killall takes no parameters
312   var cookies = document.cookie.split(';

312'), i = cookies.length - 1;
313   for (i; i > -1; --i){
314    cook.kill(cookies[i].split('=')[0]);
315   }
316  }
317 };
318
319 Marq.prototype.directspeed = function(e){
320  e = e || window.event;
321  if(this.timer) clearTimeout(this.timer);
322  var c = this.c, w = c.offsetWidth, l = c.offsetLeft, mp = (typeof e.pageX === 'number'?
323   e.pageX : e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft) - l,
324  lb = (w - this.r) / 2, rb = (w + this.r) / 2;
325  while((c = c.offsetParent)) mp -= c.offsetLeft;
326  this.mq.direction = mp > rb? 'left' : 'right';
327  this.mq.inc = Math.round((mp > rb? (mp - rb) : mp < lb? (lb - mp) : 0) / lb * this.sinc);
328 }
329
330 Marq.prototype.contains = function(e){
331  if(e && e.relatedTarget){var c = e.relatedTarget; if(c === this.c) return true;
332   while ((c = c.parentNode)) if(c === this.c) return true;}
333  return false;
334 }
335
336 function resize(){
337  for(var s, w, m, i = 0; i < marqueeInit.ar.length; ++i){
338   if(marqueeInit.ar[i] && marqueeInit.ar[i].setup){
339    m = marqueeInit.ar[i].setup;
340    s = m.mq.moveatleast? Math.max(m.mq.moveatleast, m.sinc) : (m.sinc || m.mq.inc);
341    m.c.style.width = m.mq.style.width;
342    m.cw[0] = m.cw.length > 1? parseInt(m.mq.style.width) : 'a';
343    while(m.c.offsetWidth > m.w - s){
344     w = isNaN(m.cw[0])? m.w - s : --m.cw[0];
345     if(w < 1){break;}
346     m.c.style.width = isNaN(m.cw[0])? m.w - s + 'px' : --m.cw[0] + m.cw[1];
347    }
348   }
349  }
350 }
351
352 function unload(){
353  for(var m, i = 0; i < marqueeInit.ar.length; ++i){
354   if(marqueeInit.ar[i] && marqueeInit.ar[i].persist && marqueeInit.ar[i].setup){
355    m = marqueeInit.ar[i].setup;
356    m.cookie.set(m.mq.uniqueid, m.m[0].style.left + ':' + m.m[1].style.left + ':' + m.mq.direction);
357   }
358  }
359 }
360
361 if (window.addEventListener){
362  window.addEventListener('resize', resize, false);
363  window.addEventListener('unload', unload, false);
364 }
365 else if (window.attachEvent){
366  window.attachEvent('onresize', resize);
367  window.attachEvent('onunload', unload);
368 }
369
370})();