https://www.cesarezavattini.it/js/crawler.js

1
2/* Text and/or Image Crawler Script ©2009 John Davenport Scheuer
3   as first seen in http://www.dynamicdrive.com/forums/
4   username: jscheuer1 - This Notice Must Remain for Legal Use
5   */
6
7///////////////// DO NOT EDIT /////////////////
8
9function marqueeInit(config){
10 if(!document.createElement) return;
11 marqueeInit.ar.push(config);
12 marqueeInit.run(config.uniqueid);
13}
14
15(function(){
16
17 if(!document.createElement) return;
18
19 marqueeInit.ar = [];
20
21 document.write('<style type="text/css">.marquee{white-space:nowrap;overflow:hidden;visibility:hidden;}' +
22 '#marq_kill_marg_bord{border:none!important;margin:0!important;}<\/style>');
23 var c = 0, tTRE = [new RegExp('^\\s*$'), new RegExp('^\\s*'), new RegExp('\\s*$')],
24 req1 = {'position': 'relative', 'overflow': 'hidden'}, defaultconfig = {
25  style: { //default style object for marquee containers without configured style
26	'margin': '0 auto'
27  },
28  direction: 'left',
29  inc: 2, //default speed - pixel increment for each iteration of a marquee's movement
30  mouse: 'pause' //default mouseover behavior ('pause' 'cursor driven' or false)
31 }, dash, ie = false, oldie = 0, ie5 = false, iever = 0;
32 
33 /*@cc_on @*/
34 /*@if(@_jscript_version >= 5)
35 ie = true;
36 try{document.documentMode = 2000}catch(e){};
37 iever = Math.min(document.documentMode, navigator.appVersion.replace(/^.*MSIE (\d+\.\d+).*$/, '$1'));
38 if(iever < 6)
39  oldie = 1;
40 if(iever < 5.5){
41  Array.prototype.push = function(el){this[this.length] = el;};
42  ie5 = true;
43  dash = new RegExp('(-(.))');
44  String.prototype.encamel = function(s, m){
45   s = this;
46   while((m = s.match(dash)))
47    s = s.replace(m[1], m[2].toUpperCase());
48   return s;
49  };
50 }
51 @end @*/
52
53 if(!ie5){
54  dash = new RegExp('-(.)', 'g');
55  function toHump(a, b){return b.toUpperCase();};
56  String.prototype.encamel = function(){return this.replace(dash, toHump);};
57 }
58
59 if(ie && iever < 8){
60  marqueeInit.table = [];
61  window.attachEvent('onload', function(){
62   marqueeInit.OK = true;
63   for(var i = 0; i < marqueeInit.table.length; ++i)
64   marqueeInit.run(marqueeInit.table[i]);
65  });
66 }
67 
68 function intable(el){
69  while((el = el.parentNode))
70   if(el.tagName && el.tagName.toLowerCase() === 'table')
71    return true;
72   return false;
73 };
74
75 marqueeInit.run = function(id){
76   if(ie && !marqueeInit.OK && iever < 8 && intable(document.getElementById(id))){
77    marqueeInit.table.push(id);
78    return;
79   }
80   if(!document.getElementById(id))
81    setTimeout(function(){marqueeInit.run(id);}, 300);
82   else
83    new Marq(c++, document.getElementById(id));
84 }
85
86 function trimTags(tag){
87  var r = [], i = 0, e;
88  while((e = tag.firstChild) && e.nodeType == 3 && tTRE[0].test(e.nodeValue))
89   tag.removeChild(e);
90  while((e = tag.lastChild) && e.nodeType == 3 && tTRE[0].test(e.nodeValue))
91   tag.removeChild(e);
92  if((e = tag.firstChild) && e.nodeType == 3)
93   e.nodeValue = e.nodeValue.replace(tTRE[1], '');
94  if((e = tag.lastChild) && e.nodeType == 3)
95   e.nodeValue = e.nodeValue.replace(tTRE[2], '');
96  while((e = tag.firstChild))
97   r[i++] = tag.removeChild(e);
98  return r;
99 }
100
101 function Marq(c, tag){
102  var p, u, s, a, ims, ic, i, marqContent, cObj = this;
103  this.mq = marqueeInit.ar[c];
104  for (p in defaultconfig)
105   if((this.mq.hasOwnProperty && !this.mq.hasOwnProperty(p)) || (!this.mq.hasOwnProperty && !this.mq[p]))
106    this.mq[p] = defaultconfig[p];
107  this.mq.style.width = !this.mq.style.width || isNaN(parseInt(this.mq.style.width))? '100%' : this.mq.style.width;
108  if(!tag.getElementsByTagName('img')[0])
109   this.mq.style.height = !this.mq.style.height || isNaN(parseInt(this.mq.style.height))? tag.offsetHeight + 3 + 'px' : this.mq.style.height;
110  else
111   this.mq.style.height = !this.mq.style.height || isNaN(parseInt(this.mq.style.height))? 'auto' : this.mq.style.height;
112  u = this.mq.style.width.split(/\d/);
113  this.cw = this.mq.style.width? [parseInt(this.mq.style.width), u[u.length - 1]] : ['a'];
114  marqContent = trimTags(tag);
115  tag.className = tag.id = '';
116  tag.removeAttribute('class', 0);
117  tag.removeAttribute('id', 0);
118  if(ie)
119   tag.removeAttribute('className', 0);
120  tag.appendChild(tag.cloneNode(false));
121  tag.className = ['marquee', c].join('');
122  tag.style.overflow = 'hidden';
123  this.c = tag.firstChild;
124  this.c.appendChild(this.c.cloneNode(false));
125  this.c.style.visibility = 'hidden';
126  a = [[req1, this.c.style], [this.mq.style, this.c.style]];
127  for (i = a.length - 1; i > -1; --i)
128   for (p in a[i][0])
129    if((a[i][0].hasOwnProperty && a[i][0].hasOwnProperty(p)) || (!a[i][0].hasOwnProperty))
130     a[i][1][p.encamel()] = a[i][0][p];
131  this.m = this.c.firstChild;
132  if(this.mq.mouse == 'pause'){
133   this.c.onmouseover = function(){cObj.mq.stopped = true;};
134   this.c.onmouseout = function(){cObj.mq.stopped = false;};
135  }
136  this.m.style.position = 'absolute';
137  this.m.style.left = '-10000000px';
138  this.m.style.whiteSpace = 'nowrap';
139  if(ie5) this.c.firstChild.appendChild((this.m = document.createElement('nobr')));
140  if(!this.mq.noAddedSpace)
141   this.m.appendChild(document.createTextNode('\xa0'));
142  for(i = 0; marqContent[i]; ++i)
143   this.m.appendChild(marqContent[i]);
144  if(ie5) this.m = this.c.firstChild;
145  ims = this.m.getElementsByTagName('img');
146  if(ims.length){
147   for(ic = 0, i = 0; i < ims.length; ++i){
148    ims[i].style.display = 'inline';
149    ims[i].style.verticalAlign = ims[i].style.verticalAlign || 'top';
150    if(typeof ims[i].complete == 'boolean' && ims[i].complete)
151     ic++;
152    else {
153     ims[i].onload = function(){
154       if(++ic == ims.length)
155        cObj.setup();
156      };
157    }
158     if(ic == ims.length)
159      this.setup();
160   }
161  }
162   else this.setup()
163 }
164
165  Marq.prototype.setup = function(){
166  if(this.mq.setup) return;
167  this.mq.setup = this;
168  var s, cObj = this;
169  if(this.c.style.height === 'auto')
170   this.c.style.height = this.m.offsetHeight + 4 + 'px';
171  this.c.appendChild(this.m.cloneNode(true));
172  this.m = [this.m, this.m.nextSibling];
173  if(this.mq.mouse == 'cursor driven'){
174   this.r = this.mq.neutral || 16;
175   this.sinc = this.mq.inc;
176   this.c.onmousemove = function(e){cObj.mq.stopped = false; cObj.directspeed(e)};
177   if(this.mq.moveatleast){
178    this.mq.inc = this.mq.moveatleast;
179    if(this.mq.savedirection){
180     if(this.mq.savedirection == 'reverse'){
181      this.c.onmouseout = function(e){

182       if(cObj.contains(e)) return;
183       cObj.mq.inc = cObj.mq.moveatleast;
184       cObj.mq.direction = cObj.mq.direction == 'right'? 'left' : 'right';};     
185     } else {
186      this.mq.savedirection = this.mq.direction;
187      this.c.onmouseout = function(e){
188       if(cObj.contains(e)) return;
189       cObj.mq.inc = cObj.mq.moveatleast;
190       cObj.mq.direction = cObj.mq.savedirection;};     
191    }
192    } else
193     this.c.onmouseout = function(e){if(!cObj.contains(e)) cObj.mq.inc = cObj.mq.moveatleast;};
194   }
195   else
196    this.c.onmouseout = function(e){if(!cObj.contains(e)) cObj.slowdeath();};
197  }
198  this.w = this.m[0].offsetWidth;
199  this.m[0].style.left = 0;
200  this.c.id = 'marq_kill_marg_bord';
201  this.m[0].style.top = this.m[1].style.top = Math.floor((this.c.offsetHeight - this.m[0].offsetHeight) / 2 - oldie) + 'px';
202  this.c.id = '';
203  this.c.removeAttribute('id', 0);
204  this.m[1].style.left = this.w + 'px';
205  s = this.mq.moveatleast? Math.max(this.mq.moveatleast, this.sinc) : (this.sinc || this.mq.inc);
206  while(this.c.offsetWidth > this.w - s)
207   this.c.style.width = isNaN(this.cw[0])? this.w - s + 'px' : --this.cw[0] + this.cw[1];
208  this.c.style.visibility = 'visible';
209  this.runit();
210  }
211  
212 Marq.prototype.slowdeath = function(){
213  var cObj = this;
214  if(this.mq.inc){
215   this.mq.inc -= 1;
216   this.timer = setTimeout(function(){cObj.slowdeath();}, 100);
217  }
218 }
219
220 Marq.prototype.runit = function(){
221  var cObj = this, d = this.mq.direction == 'right'? 1 : -1;
222  if(this.mq.stopped || this.mq.stopMarquee){
223   setTimeout(function(){cObj.runit();}, 300);
224   return;
225  }
226  if(this.mq.mouse != 'cursor driven')
227   this.mq.inc = Math.max(1, this.mq.inc);
228  if(d * parseInt(this.m[0].style.left) >= this.w)
229   this.m[0].style.left = parseInt(this.m[1].style.left) - d * this.w + 'px';
230  if(d * parseInt(this.m[1].style.left) >= this.w)
231   this.m[1].style.left = parseInt(this.m[0].style.left) - d * this.w + 'px';
232  this.m[0].style.left = parseInt(this.m[0].style.left) + d * this.mq.inc + 'px';
233  this.m[1].style.left = parseInt(this.m[1].style.left) + d * this.mq.inc + 'px';
234  setTimeout(function(){cObj.runit();}, 30 + (this.mq.addDelay || 0));
235 }
236
237 Marq.prototype.directspeed = function(e){
238  e = e || window.event;
239  if(this.timer) clearTimeout(this.timer);
240  var c = this.c, w = c.offsetWidth, l = c.offsetLeft, mp = (typeof e.pageX == 'number'?
241   e.pageX : e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft) - l,
242  lb = (w - this.r) / 2, rb = (w + this.r) / 2;
243  while((c = c.offsetParent)) mp -= c.offsetLeft;
244  this.mq.direction = mp > rb? 'left' : 'right';
245  this.mq.inc = Math.round((mp > rb? (mp - rb) : mp < lb? (lb - mp) : 0) / lb * this.sinc);
246 }
247
248 Marq.prototype.contains = function(e){
249  if(e && e.relatedTarget){var c = e.relatedTarget; if(c == this.c) return true;
250   while ((c = c.parentNode)) if(c == this.c) return true;}
251  return false;
252 }
253
254 function resize(){
255  for(var s, m, i = 0; i < marqueeInit.ar.length; ++i){
256   if(marqueeInit.ar[i] && marqueeInit.ar[i].setup){
257    m = marqueeInit.ar[i].setup;
258    s = m.mq.moveatleast? Math.max(m.mq.moveatleast, m.sinc) : (m.sinc || m.mq.inc);
259    m.c.style.width = m.mq.style.width;
260    m.cw[0] = m.cw.length > 1? parseInt(m.mq.style.width) : 'a';
261    while(m.c.offsetWidth > m.w - s)
262     m.c.style.width = isNaN(m.cw[0])? m.w - s + 'px' : --m.cw[0] + m.cw[1];
263   }
264  }
265 }
266
267 if (window.addEventListener)
268  window.addEventListener('resize', resize, false);
269 else if (window.attachEvent)
270  window.attachEvent('onresize', resize);
271
272})();