asp.net a solution to save and modify control values without the runat=server control

js:

 
function Save()// Saves a value that is not a server-side control  
{ 
var 1= document.getElementById('1Box').value; 
var 2 = document.getElementById('2Box').value; 
var TxtValue = 1 + " s " + 2; 
document.getElementById('3).value = TxtValue; 
return true; 
} 
window.onload=function show() 
{ 
var TxtValue = document.getElementById('3).value; 
if (TxtValue != "") { 
EachValue = new Array(); 
EachValue = TxtValue.split(' s '); 
document.getElementById('1Box').value = EachValue[0]; 
document.getElementById('2Box').value = EachValue[1]; 
} 
return true; 
} 

 
<input type="text" id="1Box" class="txt-underline" style="width: 60px;text-align:left " maxlength="10"/> 
<input type="text" id="2Box" class="txt-underline" style="width: 200px;text-align:left" maxlength="30"/> 
<input type="hidden" id="3" name="Values" runat="server" /> 

 
void LoadData()// Page load  
{ 
btnSave.Attributes.Add("onclick", "javascript:Save();"); 
string[] strTxtValues = new string[2]; 
strTxtValues[0] = dr["1"].ToString(); 
strTxtValues[1]=dr["2"].ToString(); 
string strValues = strTxtValues[0]; 
for (int i = 1; i < strTxtValues.Length; i++) 
{ 
strValues += " s " + strTxtValues[i]; 
} 
this.3.Value = strValues; 
 }  
private void SaveOrUpdate()// Save, modify  
{ 
string[] strTxtValues = this.3.Value.Split(' s '); 
string 1= strTxtValues[0]; 
string 2= strTxtValues[1];