function isNotValidCharacters1(Sec,MSG)
{
	var Spn = document.getElementById('spn').value;
	if(Spn=='1')
	{
		if(! ( Sec.value == "JK904" || Sec.value == "jk904" || Sec.value == "Jk904" || Sec.value == "jK904") ) 
		{
			alert(MSG)
			Sec.value=''
			Sec.focus()
			insertSpam()
			return true 
		}
		else
		{
			return false;
		}
	}
	if(Spn=='2')
	{
		if(! ( Sec.value == "WS506" || Sec.value == "Ws506" || Sec.value == "wS506" || Sec.value == "ws506") ) 
		{
			alert(MSG)
			Sec.value=''
			Sec.focus()
			insertSpam()
			return true 
		}
		else
		{
			return false;
		}
	}
	if(Spn=='3')
	{
		if(! ( Sec.value == "JE496" || Sec.value == "Je496" || Sec.value == "jE496" || Sec.value == "je496") ) 
		{
			alert(MSG)
			Sec.value=''
			Sec.focus()
			insertSpam()
			return true 
		}
		else
		{
			return false;
		}
	}
	if(Spn=='4')
	{
		if(! ( Sec.value == "ER453" || Sec.value == "Er453" || Sec.value == "eR453" || Sec.value == "er453") ) 
		{
			alert(MSG)
			Sec.value=''
			Sec.focus()
			insertSpam()
			return true 
		}
		else
		{
			return false;
		}
	}
	if(Spn=='5')
	{
		if(! ( Sec.value == "CY561" || Sec.value == "Cy561" || Sec.value == "cY561" || Sec.value == "cy561") ) 
		{
			alert(MSG)
			Sec.value=''
			Sec.focus()
			insertSpam()
			return true 
			
		}
		else
		{
			return false;
		}
	}
	if(Spn=='6')
	{
		if(! ( Sec.value == "hi421" || Sec.value == "Hi421" || Sec.value == "hI421" || Sec.value == "HI421") ) 
		{
			alert(MSG)
			Sec.value=''
			Sec.focus()
			insertSpam()
			return true 
		}
		else
		{
			return false;
		}
	}
	if(Spn=='7')
	{
		if(! ( Sec.value == "LP590" || Sec.value == "Lp590" || Sec.value == "lP590" || Sec.value == "lp590") ) 
		{
			alert(MSG)
			Sec.value=''
			Sec.focus()
			insertSpam()
			return true 
		}
		else
		{
			return false;
		}
	}
}



/************************************************************/

function insertSpam()
{
var randomnumber=Math.floor(Math.random()*6)
randomnumber++;
document.getElementById('spam2').value=randomnumber;
if(randomnumber=='1')
	{
		
		document.getElementById('code').innerHTML='<img src="../spam/spam1.jpg" width="50" height="19" border="0"><input type="hidden" value="1" name="spn" id="spn">';
	}
if(randomnumber=='2')
	{
		
		document.getElementById('code').innerHTML='<img src="../spam/spam2.jpg" width="50" height="19" border="0"><input type="hidden" value="2" name="spn"  id="spn">';
	}
	if(randomnumber=='3')
	{
		
		document.getElementById('code').innerHTML='<img src="../spam/spam3.jpg" width="50" height="19" border="0"><input type="hidden" value="3" name="spn" id="spn">';
	}
	if(randomnumber=='4')
	{
		
		document.getElementById('code').innerHTML='<img src="../spam/spam4.jpg" width="50" height="19" border="0"><input type="hidden" value="4" name="spn" id="spn">';
	}
	if(randomnumber=='5')
	{
		
		document.getElementById('code').innerHTML='<img src="../spam/spam5.jpg" width="50" height="19" border="0"><input type="hidden" value="5" name="spn" id="spn">';
	}
	if(randomnumber=='6')
	{
		
		document.getElementById('code').innerHTML='<img src="../spam/spam6.jpg" width="50" height="19" border="0"><input type="hidden" value="6" name="spn" id="spn">';
	}
	if(randomnumber=='7')
	{
		
		document.getElementById('code').innerHTML='<img src="../spam/spam7.jpg" width="50" height="19" border="0"><input type="hidden" value="7" name="spn" id="spn">';
	}
}