JS Div Content Display Paging

Due to the need for work

div fixed size and content is variable, so if the content is too natural to show up, so you need to page a class of functions the following is the code

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
In fact, in the calculation of the div's display height and content height to the total number of pages displayed on the page is how many pixels start to display it
JS Div Content Display Paging