//------------ Removing the Leading and Trailing Spaces of the String -----------//
function TrimSpaces(checkstring)
  { var first_char
    var ch           
    var newstring
	
    newString = "";      
   
    
    for (i = 0;i < checkstring.length; i++) 
    {
        ch = checkstring.substring(i,i+1);
        if (ch != " " ) 
        {
           first_char=i;
            
           break;
        }
    }
    
    for (j = checkstring.length;j > 0;j--) 
    {
        ch = checkstring.substring(j,j-1);
        if (ch != " " ) 
        {
            newString=checkstring.substring(j,first_char);
            
            break;
        }
    }
    
   return newString;
}

function checkLoginID()
{
	var nStrLength;
	var strData;
	strData=document.frmLogin.Username.value;
	strData=TrimSpaces(strData);
	nStrLength =  strData.length;
	for(i=0;i<nStrLength; i++)
	{
		if((strData.charAt(i)=="'") )
		{
			alert("Single quotes are not allowed")
			document.frmLogin.Username.focus();
			return false;
		}
	}
	return true;
}

function ValidateForm()
{
	// Validating for UserName & Password
	if ((TrimSpaces(document.frmLogin.Username.value) == "") && (TrimSpaces(document.frmLogin.Password.value == "")))
	{
		alert("User Login Name and Password are mandatory");
		document.frmLogin.Username.focus();
		return false;
	}
	if (document.frmLogin.Username.value == "")
	{
		alert("User Login Name is mandatory");
		document.frmLogin.Username.focus();
		return false;
	}
	if (document.frmLogin.Password.value == "")
	{
		alert("User Password is mandatory");
		document.frmLogin.Password.focus();
		return false;
	}
	return true;
}