We are having a custom label control, which is having a Rad tool tip as it's child control. When the control is rendered in page, it is rendered as below,
<span class="aspLabelWithoutFocus" id="SV_704d8aa8-7ffb-4904-8ac0-1715793d4b89_ctl01_OnFocusEvents">
<div style="display: none; position: absolute;" id="SV_704d8aa8-7ffb-4904-8ac0-1715793d4b89_ctl01_OnFocusEvents_RadTooltip1" class="tooltipStyle">
<input id="SV_704d8aa8-7ffb-4904-8ac0-1715793d4b89_ctl01_OnFocusEvents_RadTooltip1_ClientState" name="SV_704d8aa8-7ffb-4904-8ac0-1715793d4b89_ctl01_OnFocusEvents_RadTooltip1_ClientState" type="hidden" autocomplete="off">
<span class="aspLabelWithoutFocus" onmouseover="this.className='cssClassMouseOver'" onmouseout="this.className='aspLabelWithoutFocus'"></span>
This control is being rendered within update panel. Please help us in resolving this issue.