set the control hidden use javascript

set the control hidden use javascript

method 1：

1document.all["PanelSMS"].style.visibility="hidden"
2document.all["PanelSMS"].style.visibility="visible"

when the control been hiddened, it also has his position in the page

method 2：

 

1document.all["PanelSMS"].style.display="none" 
2document.all["PanelSMS"].style.display="inline"

when the control been hiddened, it has no position in the page