Full edit WebGrid Control Lrcgrid (4)--script library and style sheet

Full edit WebGrid Control Lrcgrid (4)--script library and style sheet
Script Library: A function that contains a control client action. Including:
function to switch table rows to edit mode: Chgeditrow (Rowindex,tab) ()
function to switch table columns to edit mode: Chgedit (Colindex,tab)
To construct an SQL statement that updates a database on a client: BuildSQL (tabname)
Functions to add new records: addrow (tab)
Remove the newly added row function: removerow (tab)
All JS code:
function Chgeditrow (rowindex,tab)
{
var tabbody = tab.tbodies[0];
var IsE = 0;
alert (RowIndex);
alert (tabbody.rows[rowindex].cells.length);
for (var i = 0;i< tabbody.rows[rowindex].cells.length;i++)
{
alert (tabbody.rows[rowindex].cells[i].childnodes[0].id);
if (Tabbody.rows[rowindex].cells[i].haschildnodes ())
{

if (Tabbody.rows[rowindex].cells[i].childnodes[0].nodetype!= 3)
{
if (Tabbody.rows[rowindex].cells[i].childnodes[0].id.indexof (' lrctb_ ')!=-1)
{
if (!tabbody.rows[rowindex].cells[i].childnodes[0].disabled)
{
Tabbody.rows[rowindex].cells[i].childnodes[0].disabled = true;
Tabbody.rows[rowindex].cells[i].childnodes[0].classname = "Lrc_txt_hid";
}
Else
{
tabbody.rows[rowindex].cells[i].childnodes[0].disabled = false;
Tabbody.rows[rowindex].cells[i].childnodes[0].classname = "Lrc_txt_show";
}
}
else if (tabbody.rows[rowindex].cells[i].childnodes[0].id.indexof (' Lrcdrl_ ')!=-1)
{
if (!tabbody.rows[rowindex].cells[i].childnodes[0].disabled)
{
Tabbody.rows[rowindex].cells[i].childnodes[0].disabled = true;
}
Else
{
tabbody.rows[rowindex].cells[i].childnodes[0].disabled = false;
}
}
}
}
}
}
function Chgedit (colindex,tab)
{
var tabbody = tab.tbodies[0];
var Onerow;
if (tabbody.rows[1].cells[colindex].childnodes[0].disabled)