I have used Jquery Ui-dialog on my project. when i click on link the Jquery Ui-dialog opens,

$("#myId").position({ my: "left top", at: "right+10 top-10", of: this, collision: "flip" });

on first page load only, the ui-dialog has the css like top: 96.0004px; left: 246px; After all the time when i click on link , the ui-dialog has the css like top: 96.0004px; left: 249px;

The top value remain the same, But the left value is only changing...

My question is why the left value is vary from 246px to 249px?

All are working fine except left vale varies. It shouldn't change the left value. always it should be same.

Please help anyone. Thanks in advance