Javascript to select all check box from datagrid

Write Following function in

tag.

function CheckAll(dgView)
{
var datagrid = document.getElementById(dgView);
for (var i=0;i < datagrid.rows.length;i++)
{
var e = datagrid.rows[i].cells[0];
for (k=0; k < e.childNodes.length; k++)
{
if ((e.childNodes[k].type=='checkbox'))
{
e.childNodes[k].checked=true;
}
}
}
}

Call above function on button click event by passing datagrid object as a parameter.

Javascript to Accept Only Numbers in TextBox

function numbersonly(e, decimal)
{
var key;
var keychar;
if (window.event)
key = window.event.keyCode;
else if (e)
key = e.which;
else
return true;
keychar = String.fromCharCode(key);
if ((key==null) (key==0) (key==8) (key==9) (key==13) (key==27) )
return true;
else if ((("0123456789").indexOf(keychar) > -1))
return true;
else
return false;
}