Hide Error Label on Anchor Click.

Below Sequence fires.

• When link is clicked it hides the label by calling 'onClick="Hide()' hides the label.
• When the button is clicked below event happens:
• button_clientside_click : NA
• Page_Load: Label gets Visible due to declarative values.
  
• Button_ServerSide_Click :
• Page_PreRender
• body_onload_clientside : NA
• Page_Render : Label gets Visible
  
• Page_Unload

Hence when the button is clicked you will see the label again. i.e Server does not consider the changes made by client.

// -----------------------------------------------
function Hide()
{
document.getElementById('Label1').style.display='none';
}
// -----------------------------------------------

Hope it is Clear now.