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Jquery-based floating box (better scalability)

Source: Internet
Author: User
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Copy codeThe Code is as follows:
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>
<Title> </title>
<Style type = "text/css">
Body
{
Height: 2000px;
}
. Float_mx {
Background: # CCC;
Width: 100px;
Height: 100px;
Display: none;
}
</Style>
</Head>
<Body>
<Div class = "float_mx">
Add content here
</Div>
<Script src = "http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type = "text/javascript"> </script>
<Script type = "text/javascript">
(Function ($ ){
$. Fn. scrollBox = function (options ){
Var defaultOptions = {
Speed: 0.1, // Acceleration
Time: 16, // movement speed
Top: 200, // default top
Align: 'right', // floating position, optional; left or right
Mix: 0 // margin
};
Var options = $. extend (defaultOptions, options );
This. each (function (){
Var obj = $ (this );
Init ();
Function init (){
Obj.css ('display', 'block ');
Obj.css ('position', 'absolute ');
Obj.css (options. align, options. mix );
Obj.css ('top', options. top + 'px ');
Obj.css ('z-Index', '99 ');
Move ();
}
Function back (){
Acceleration = options. speed;
Time = options. time;
Var x1 = 0;
Var y1 = 0;
Var x2 = 0;
Var y2 = 0;
If (document.doc umentElement ){
X1 = document.doc umentElement. scrollLeft | 0;
Y1 = document.doc umentElement. scrollTop | 0;
}
If (document. body ){
X2 = document. body. scrollLeft | 0;
Y2 = document. body. scrollTop | 0;
}
Var x = Math. max (x1, x2 );
Var y = Math. max (y1, y2 );
Var speed = acceleration;
Return {
L: x,
T: y,
S: speed
};
};

Function move (){
Var tip = obj;
Var old = options. top;
Var pos = back (). t;
Pos = pos-$ (tip). Coordinate (). y + options. top;
Pos = $ (tip). Coordinate (). y + pos/10;
If (pos <options. top ){
Pos = options. top;
}
If (pos! = Old ){
Tip.css ('top', pos + "px ");
}
Old = pos;
Window. setTimeout (function () {move () ;}, options. time );
};
});
};
$. Fn. Coordinate = function (){
Var E = $ (this) [0];
Var C = E. offsetTop;
Var B = E. offsetLeft;
Var A = E. offsetWidth;
Var D = E. offsetHeight;
While (E = E. offsetParent ){
C + = E. offsetTop;
B + = E. offsetLeft;
}
Return {
X: B,
Y: C,
W:,
H: D
};
};
}) (JQuery );
$ ('. Float_mx'). scrollBox ();
</Script>
</Body>
</Html>

Put the following proxy in a separate js file. the css code in the code can be deleted and the display is set to none to avoid incorrect display after the page is loaded.
Copy codeThe Code is as follows:
(Function ($ ){
$. Fn. scrollBox = function (options ){
Var defaultOptions = {
Speed: 0.1, // Acceleration
Time: 16, // movement speed
Top: 200, // default top
Align: 'right', // floating position, optional; left or right
Mix: 0 // margin
};
Var options = $. extend (defaultOptions, options );
This. each (function (){
Var obj = $ (this );
Init ();
Function init (){
Obj.css ('display', 'block ');
Obj.css ('position', 'absolute ');
Obj.css (options. align, options. mix );
Obj.css ('top', options. top + 'px ');
Obj.css ('z-Index', '99 ');
Move ();
}
Function back (){
Acceleration = options. speed;
Time = options. time;
Var x1 = 0;
Var y1 = 0;
Var x2 = 0;
Var y2 = 0;
If (document.doc umentElement ){
X1 = document.doc umentElement. scrollLeft | 0;
Y1 = document.doc umentElement. scrollTop | 0;
}
If (document. body ){
X2 = document. body. scrollLeft | 0;
Y2 = document. body. scrollTop | 0;
}
Var x = Math. max (x1, x2 );
Var y = Math. max (y1, y2 );
Var speed = acceleration;
Return {
L: x,
T: y,
S: speed
};
};

Function move (){
Var tip = obj;
Var old = options. top;
Var pos = back (). t;
Pos = pos-$ (tip). Coordinate (). y + options. top;
Pos = $ (tip). Coordinate (). y + pos/10;
If (pos <options. top ){
Pos = options. top;
}
If (pos! = Old ){
Tip.css ('top', pos + "px ");
}
Old = pos;
Window. setTimeout (function () {move () ;}, options. time );
};
});
};
$. Fn. Coordinate = function (){
Var E = $ (this) [0];
Var C = E. offsetTop;
Var B = E. offsetLeft;
Var A = E. offsetWidth;
Var D = E. offsetHeight;
While (E = E. offsetParent ){
C + = E. offsetTop;
B + = E. offsetLeft;
}
Return {
X: B,
Y: C,
W:,
H: D
};
};
}) (JQuery );

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