Today, I checked Sina's Js Code It is good to find a back-cast advertising code from both the perspective of learning and use, but it will be blocked if it finds a problem.
The following is the specific JS Code.
Copy code The Code is as follows :/*
Carousel back-cast rotatorpb v3.1
Update by dakular <shuhu@staff.sina.com.cn>
Format: New rotatorpb (AD array)
Note: The first access appears randomly, and then the access sequence is carousel; expired ads are automatically filtered; cookie time is 24 hours; when the number of commercial ads is insufficient
*/
If (typeof (rotatorpb )! = 'Function '){
VaR rotatorpb = function (RAD ){
This. ary = new array ();
This. Date = new date ();
This. W = rad. width;
This. H = rad. height;
This. num = rad. Num;
This. O = rad. length;
This. ID = rotatorpb. ID ++;
This. M = 'rpb _ '+ this. ID;
This. n = new array ();
This. L = new date ();
This. E = 0;
VaR F;
VaR d = false;
VaR nn = 0;
// Filter invalid ads
For (VAR I = 0; I <rad. length; I ++ ){
VaR start = rotatorpb. strtodate (RAD [I] [2]. replace ('<startdate> ',''). replace ('</startdate> ',''));
VaR end = rotatorpb. strtodate (RAD [I] [3]. replace ('<enddate> ',''). replace ('</enddate>', ''), true );
If (this. Date> Start & this. Date <End & (this. num = NULL | this. ary. Length <this. Num )){
This. ary. Push ([rad [I] [0], Rad [I] [1], Rad [I] [4]);
}
}
This. O = This. ary. length;
// Obtain the ID
For (VAR I = 0; I <this. O; I ++ ){
F = This. m + '_' + (I + 1 );
G = rotatorpb. G (f );
If (G! = ''){
This. N [I] = g;
D = true;
} Else {
This. N [I] = 0;
}
}
If (! D ){
VaR r = math. Ceil (math. Random () * This. O );
VaR T = This. m + '_' + R;
Rotatorpb. S (T, this. l. gettime (), 1440 );
This. E = R;
If (this. O = 1) {rotatorpb. S ('s _ DL ', R, 1440 );}
// Return R;
} Else {
VaR r = This. N. Join (','). Split (',');
VaR K = R. Sort ();
VaR max = Number (K [K. Length-1]);
VaR min = Number (K [0]);
VaR F;
For (VAR I = 0; I <this. N. length; I ++ ){
If (max = This. N [I]) {
F = I + 1;
Break;
}
}
If (typeof (f )! = 'Undefined '){
G = This. m + '_' + F;
H = Number (rotatorpb. G (g ));
I = F % This. O + 1;
J = This. m + '_' + I;
Rotatorpb. S (J, this. l. gettime (), 1440 );
If (this. O = 1 ){
I =-rotatorpb. G ('s _ DL ');
If (I = 0) {I = 1; rotatorpb. S ('s _ DL ', 1, 1440 );}
Rotatorpb. S ('s _ DL ', I, 1440 );
}
This. E = I;
// Return I;
}
}
// Show ad
If (this. E = 0 | this. ary. Length = 0) return; // if no advertisement is displayed, It is not displayed.
If (this. E =-1) return; // when there is only one advertisement, the first or odd refresh is always displayed.
VaR n = this. The E-1;
VaR btsrc = This. ary [N] [0];
VaR bturl = This. ary [N] [1];
VaR bttype = btsrc. substring (btsrc. Length-3). tolowercase ();
If (bttype = '. js') {// JS
Document. write ('<script language = "JavaScript" type = "text/JavaScript" src = "' + btsrc + '"> </scr' + 'ipt'> '); return;
} Else if (bttype! = 'Htm' & bttype! = 'Tml '){
Sinabturl = "http://d1.sina.com.cn/d1images/pb/pbv4.html? "+ Bturl +" $ {} "+ bttype +" $ {} "+ btsrc;
} Else {
Sinabturl = btsrc;
}
Try {
Aryadseq. Push ("openwindowback ()");
} Catch (e ){
Openwindowback ();
}
If (this. ary [N] [2]! = "") {// Monitoring count
VaR oimg = new image ();
Oimg. src = This. ary [N] [2];
}
};
Rotatorpb. ID = 1;
Rotatorpb. G = function (n ){
VaR c = Document. Cookie. Split (";");
For (VAR I = 0; I <C. length; I ++ ){
VaR d = C [I]. Split ("= ");
If (d [0] = N) return Unescape (d [1]);
} Return '';
};
Rotatorpb. S = function (n, V, q ){
VaR L = new date ();
VaR z = new date (L. gettime () + Q * 60000 );
Document. Cookie = N + "=" + escape (v) + "; Path =/; expires =" + Z. togmtstring () + ";";
};
Rotatorpb. strtodate = function (STR, ext ){
VaR arys = new array ();
Arys = Str. Split ('-');
VaR newdate = new date (arys [0], arys [1]-1, arys [2], 9, 0, 0 );
If (EXT ){
Newdate = new date (newdate. gettime () + 1000*60*60*24 );
}
Return newdate;
}
VaR openwindowback = function (){
VaR popupwin2 = open (sinabturl, (window. Name! = "Popupwin2 ")? "Popupwin2": "", "width = 1, Height = 1, Top = 4000, Left = 3000 ");
}
};
Specific call code:Copy codeThe Code is as follows: <SCRIPT src = "rotator_pb.js"> </SCRIPT>
<Script language = JavaScript type = text/JavaScript>
// <! [CDATA [
VaR RPB = new array ();
RPB. num = 2; // Number of carousel broadcasts
<! -- 2220e7b88d58 --> // ad Creation
RPB. Push (["http://img.jb51.net/demo/images/beitou.jpg", "http://www.jb51.net", "<startdate> </startdate>", "<enddate> </enddate>", ""]);
<! -- $ Litong/2009-4-15 ~ 2009-8-15/B $ -->
New rotatorpb (RPB );
//]>
</SCRIPT>
Beitou.jpg is the image address, followed by a link. You can refer to the start date and end date.
