Insert code in multiple lines

<Script language = "JavaScript">
// Enter the script content
Function max ()
{
VaR STR = (document. Send. VII. Value). Length
Alert ('length of the input value is '+ STR +' bit ');
}

Function changevalue ()
{
If (document. All. VII. value = ''& document. All. Vie. value! = '')
{
Document. All. VII. value = Document. All. Vie. value;
Document. All. Vie. value = '';
}
Else if (document. All. Vie. value = ''& document. All. VII. value! = '')
{
Document. All. Vie. value = Document. All. VII. value;
Document. All. VII. value = '';
}
Else if (document. All. Vie. value! = ''& Document. All. VII. value! = '')
{
VaR x = Document. All. Vie. Value
Var y = Document. All. VII. Value
Document. All. Vie. value = y;
Document. All. VII. value = X;
}
}

</SCRIPT>
<Form name = "send">
<Input type = text value = ''name =" VII ">
<Input type = text value = ''name =" Vie ">
<Input type = "button" value = "change" class = "buttonsave" onclick = "javascript: changevalue ();" id = button2 name = button2>
<Input type = "button" value = "test" class = "buttonsave" onclick = "javascript: max ();" id = button2 name = button2>

</Form>

</BR>
<Script language = "JavaScript">

<! -- // Insert any record at a time
// Add a single entry
Function setid (){
VaR d = (document. All. N. value)
STR = '';

D = ++ (d)
If (D> 10)
{
Alert ('You really want to insert '+ D +' rows at a time! \ N, but the system can only charge up to 10 rows .')

Return false;

}

For (I = 1; I <= D; I ++)

STR + = ''+ I + '. registration Name: <input type = text name = "name"> password: <input type = password name = "pass"> <br> ';
Window. tbid. innerhtml = STR + '<br> ';
If (d <= 10)
{
Document. All. N. value = D;
}
Else
{Document. All. N. value = 10}
Document. All. upcount. value = 1;
Document. All. scount. value = '';

// Alert (STR + '\ NN value:' + document. All. N. value );
}

// Batch increase
Function batsetid ()

{
STR =''
VaR d = Document. All. upcount. Value
If (D> 10)
{
Alert ('You really want to insert '+ D +' rows at a time! \ N, but the system can only charge up to 10 rows .')
Return false;

}
For (I = 1; I <= D; I ++)

STR + = ''+ I + '. registration Name: <input type = text name = "name"> password: <input type = password name = "pass"> <br> ';
Window. tbid. innerhtml = STR + '<br> ';
Document. All. N. value = D;
Document. All. upcount. value = 1;
Document. All. scount. value = '';
// Alert (STR + '\ NN value:' + document. All. N. value );
}
// Delete a single entry
Function delline ()
{
VaR d = Document. All. N. Value
STR = '';
D = -- (d)
If (D = 0)
{
Alert ('You really don't want any more? ');
// Alert (d)
Document. All. scount. value = '';
Return false;
}
Else if (d <0)
{
VaR x = Document. All. scount. value;
Var y = Document. All. scount. Value-document. All. N. value;

Alert ('number of items to be deleted '+ x +' more than the number of existing items '+ Y + ');
// Alert (d );
Document. All. scount. value = '';
Return false;
}
For (I = 1; I <= D; I ++)

STR + = ''+ I + '. registration Name: <input type = text name = "name"> password: <input type = password name = "pass"> <br> ';
Window. tbid. innerhtml = STR + '<br> ';
Document. All. N. value = D;
Document. All. scount. value = '';
}
// Batch Delete
Function batdel ()

{
If (document. All. scount. value = '')
{
Alert ('Enter the number of items to delete! ')
Document. All. scount. Focus ();
Return false;
}
STR =''
VaR d = Document. All. N. Value
D = D-document. All. scount. Value
If (D = 0)
{
Alert ('You really don't want any more? ');
// Alert (d)
Document. All. scount. value = '';
Return false;
}
Else if (d <0)
{
VaR x = Document. All. scount. value;
Var y = Document. All. scount. Value-document. All. N. value;

Alert ('number of items to be deleted '+ x +' more than the number of existing items '+ Y + ');
// Alert (d );
Document. All. scount. value = '';
Return false;
}
For (I = 1; I <= D; I ++)

STR + = ''+ I + '. registration Name: <input type = text name = "name"> password: <input type = password name = "pass"> <br> ';
Window. tbid. innerhtml = STR + '<br> ';
Document. All. Pass. Focus ();
Document. All. N. value = D;
Document. All. upcount. value = 1;
Document. All. scount. value = '';
// Alert (STR + '\ NN value:' + document. All. N. value );
}

// -->
</SCRIPT>

<Script for = "document" event = "onkeydown" Language = "JavaScript">
// Keyboard operation definition, allowing one carriage return to the end.
If (event. keycode = 13 ){
Event. keycode = 9;

}
If (event. keycode = 187)
{
Setid ();
}
If (event. keycode = 189)
{
Delline ();
}
If (event. ctrlkey)
{
If (event. keycode = 46)
{
Document. All. scount. value = Document. All. N. Value-1

If (confirm ('Are you sure you want to delete it? '))
{Batdel ();}
}
If (event. keycode = 45)
{
Document. All. upcount. value = 10
Batsetid ();
}
}

</SCRIPT>
<Body onload = "document. All. Pass. Focus ();">
<Form name = "myform">
<Select name = "upcount" class = "txtfld4" onchange = "batsetid ()">

<Option value = "1"> 1 </option>

<Option value = "2"> 2 </option>

<Option value = "3"> 3 </option>

<Option value = "4"> 4 </option>

<Option value = "5"> 5 </option>

<Option value = "6"> 6 </option>

<Option value = "7"> 7 </option>

<Option value = "8"> 8 </option>

<Option value = "9"> 9 </option>

<Option value = "10"> 10 </option>

</SELECT>

Reduced quantity <input type = "text" name = "scount" value = "" size = "3" maxlength = "2"> <input type = "button" value = "batchdel -"class =" buttonsave "onclick =" javascript: batdel (); "id = button2 name = button2> <input type =" button "value =" add + "class =" buttonsave "onclick =" javascript: setid (); "id = button2 name = button2> <input type =" button "value =" Del-"class =" buttonsave "onclick =" javascript: delline (); "id = button2 name = button2>
<Table>
<Tr>
<TD id = "tbid" colspan = "3" nowrap> User Name <input type = text name = "name">
Password <input type = password name = "pass">

<Br> </TD>
</Tr>
</Table>
Current quantity: <input type = "text" name = "N" value = "1">

</Form>
+ Add row-number to reduce row Ctrl + DEL Delete All Ctrl + INS add to maximum
</Body>