这是我的代码
onmouseout="if ($find('MainContent_ctl01_txtInsDate') != null) $find('MainContent_ctl01_txtInsDate').buttonMouseOut(event);"
onmouseup="if ($find('MainContent_ctl01_txtInsDate') != null) $find('MainContent_ctl01_txtInsDate').customButtonMouseUp(event);"
onmousedown="if ($find('MainContent_ctl01_txtInsDate') != null) $find('MainContent_ctl01_txtInsDate').customButtonMouseDown(event);"