var xmlHttp;

function LoginDetails()
{

		
    var url = 'Document_management/CustomerLogin.aspx';
     // var url = 'CustomerLogin.aspx';
    var Uid;
    var Pwd;
    
    if(document.getElementById("txt_uid"))
         Uid = document.getElementById("txt_uid").value;
    if(Uid == 'undefined' || Uid == '')
        Uid = "";
             
    if(document.getElementById("txt_pwd"))
        Pwd = document.getElementById("txt_pwd").value;     
    if(Pwd == 'undefined' || Pwd == '')
        Pwd = "";
        
  
    url = url + '?UID=' + Uid + '&PWD=' + Pwd + '&rnd' + Math.random() ;    
   
    xmlHttp = GetXmlHttpObject();
    
    
    if(xmlHttp != null)
    {
        xmlHttp.onreadystatechange = StateChanged;
        xmlHttp.open("GET",url,true);
        xmlHttp.send(null)
   }
    
}
function CheckUser()
{
   
   xmlHttp = GetXmlHttpObject();
  
   if(xmlHttp != null)
    {
        xmlHttp.onreadystatechange = StateChanged;
        xmlHttp.open("GET",url,true);
        xmlHttp.send(null)
        
        
    }
}

function GetXmlHttpObject()
{

    var objxmlHttp = null;
    if(window.XMLHttpRequest)
        objXMLHttp=new XMLHttpRequest();
    else
        objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP");
   return objXMLHttp;
    
}

function StateChanged()
{

    if(xmlHttp.readyState == 4 || xmlHttp.readyState == "complete")
    {
    var url ="" ;
  
         url = xmlHttp.responseText ;
   
       
        if(url != "")
        {
			window.location.href = url;
		
        }
        else
        {
			 document.getElementById("spn_error").innerText= "Invalid Username or password.";
     
        }
          
        
    }
}