Get CheckBox Text

<asp:CheckBox runat="server" ID="chkFavorites"Text="Show Favorites" Checked="true" /><br/>

<asp:Button runat="server" ID="btnOk" Text="Ok" OnClientClick="getCheckBoxText('chkFavorites');"/>

/http://forums.asp.net/p/1018339/1373760.aspx

function getCheckBoxText(CheckBoxId)

{

var checkbox = document.getElementById(CheckBoxId);

//alert(checkbox.previousSibling);

//alert(checkbox.nextSibling);

//alert(checkbox.nextSibling.nodeType);

// alert(checkbox.nextSibling.nodeName);

//alert(checkbox.nextSibling.innerHTML);

if(checkbox.checked == true )//&& checkbox.nextSibling != null)

{

var label = checkbox.nextSibling;

//alert(label.innerText);

alert(label.innerHTML);

}

}

function getCheckBoxListText()

{

var list = "";

var idModifier = 0;

var checkbox = document.getElementById(("ctl00_ContentPlaceHolder1_lstFacility_" +
idModifier));

while(checkbox != null)

{

if(checkbox.checked == true)// && checkbox.nextSibling != null)

{

var label = checkbox.nextSibling;

list += label.innerText + ", ";

}

checkbox = document.getElementById(("ctl00_ContentPlaceHolder1_lstFacility_" +
(++idModifier).toString()));

}

// here you should remove any trailing
commas.

}

http://simonwillison.net/2003/Aug/11/documentAll/

document.all.length
is not support in firefox

for(i = 0; i < document.all.length; i++)

{

if
(document.all(i).tagName=="label")

{

document.getElementById(

'<%=
lblShowFavorite.ClientID %>').innerHTML = "<b>" +
document.all(i).innerText +" : " + "</b>" +
document.getElementById('<%=chkShowFav.ClientID%>').checked;

break;

}

}