JS and JQUERY get page size, scroll bar location, element location

JS and JQUERY get page size, scroll bar location, element location

This article mainly introduces the sample code for JS and JQUERY to get the page size, scroll bar location, and element location. For more information, see.

Js and jquery get page size, scroll bar position, element location

The Code is as follows:

// Page location and window size

 

Function GetPageSize (){

Var scrW, scrH;

If (window. innerHeight & window. scrollMaxY)

{// Mozilla

ScrW = window. innerWidth + window. scrollMaxX;

ScrH = window. innerHeight + window. scrollMaxY;

}

Else if (document. body. scrollHeight> document. body. offsetHeight)

{// All but IE Mac

ScrW = document. body. scrollWidth;

ScrH = document. body. scrollHeight;

} Else if (document. body)

{// IE Mac

ScrW = document. body. offsetWidth;

ScrH = document. body. offsetHeight;

}

Var winW, winH;

If (window. innerHeight)

{// All bytes t IE

WinW = window. innerWidth;

WinH = window. innerHeight;

} Else if (document.doc umentElement & document.doc umentElement. clientHeight)

{// IE 6 Strict Mode

WinW = document.doc umentElement. clientWidth;

WinH = document.doc umentElement. clientHeight;

} Else if (document. body) {// other

WinW = document. body. clientWidth;

WinH = document. body. clientHeight;

} // For small pages with total size less then the viewport

Var pageW = (scrW <winW )? WinW: scrW;

Var pageH = (scrH <winH )? WinH: scrH;

Return {PageW: pageW, PageH: pageH, WinW: winW, WinH: winH };

 

};

 

// Scroll bar position

Function GetPageScroll ()

{

Var x, y; if (window. pageYOffset)

{// All bytes t IE

Y = window. pageYOffset;

X = window. pageXOffset;

} Else if(document.doc umentElement & document.doc umentElement. scrollTop)

{// IE 6 Strict

Y = document.doc umentElement. scrollTop;

X = document.doc umentElement. scrollLeft;

} Else if (document. body) {// all other IE

Y = document. body. scrollTop;

X = document. body. scrollLeft;

}

Return {X: x, Y: y };

 

}

 

 

Jquery

 

Get the height of the display area of the browser: $ (window). height ();

Obtain the width of the display area of the browser: $ (window). width ();

Get the document height on the page: $ (document). height ();

Get the document width: $ (document). width ();

 

Obtain the vertical height of the scroll bar to the top: $ (document). scrollTop ();

Obtain the vertical width of the scroll bar to the left: $ (document). scrollLeft ();

 

Calculates the element position and offset.

The offset method is a useful method that returns the offset information of the first element in the packaging set. By default, it is the offset information relative to the body. The result contains the top and left attributes.

Offset (options, results)

Options. relativeTo specifies the ancestor element at the relative offset position. This element should be located by relative or absolute. If this parameter is omitted, it is relative to the body.

Options. Does scroll include the scroll bar? The default value is TRUE.

Options. whether to include padding. The default value is false.

Options. Whether margin is included. The default value is true.

Options. border determines whether to include the border. The default value is true.