function trim(str)
{ return str.replace(/^\s+/,'').replace(/\s+$/,'');
} 


function r()
{      
        ss=trim(document.pf.serial.value);
	eval("z=ss.substr(0,9)");

	if(z=="NPC-AKL10")
	{
		sump=79;
    document.getElementById('pricecol').style.display="";
    document.getElementById('tp10').style.display="";

	}
	else if(z=="NPC-AKL25")
	{
		sump=149;
    document.getElementById('pricecol').style.display="";
    document.getElementById('pr25').style.display="none";
    document.getElementById('tp25').style.display="";
	}
	else if(z=="NPC-AKL50")
	{
		sump=199;
    document.getElementById('pricecol').style.display="";
    document.getElementById('pr25').style.display="none";
    document.getElementById('pr50').style.display="none";
    document.getElementById('tp50').style.display="";

	}
	else if(z=="NPC-AKLSB")
	{
		sump=199;
    document.getElementById('pricecol').style.display="";
    document.getElementById('pr25').style.display="none";
    document.getElementById('pr50').style.display="none";
    document.getElementById('prSB').style.display="none";
    document.getElementById('tpSB').style.display="";

	}
	else if(z=="NPC-AKLEX")
	{
		sump=299;
    document.getElementById('pricecol').style.display="";
    document.getElementById('pr25').style.display="none";
    document.getElementById('pr50').style.display="none";
    document.getElementById('prSB').style.display="none";
    document.getElementById('prEX').style.display="none";
    document.getElementById('tpEX').style.display="";
	}
	else if(z=="NPC-AKLST")
	{
		sump=1499;
    document.getElementById('pricecol').style.display="";
    document.getElementById('pr25').style.display="none";
    document.getElementById('pr50').style.display="none";
    document.getElementById('prSB').style.display="none";
    document.getElementById('prEX').style.display="none";
    document.getElementById('prST').style.display="none";
    document.getElementById('tpST').style.display="";
	}
	else
	{
		sump=0;
	}

  for(j=0;j<5;j++)
  { var sum=0;
   eval("x=document.pf.pr_license["+j+"].checked");
   if(x)
   { 
     eval("y=parseFloat(document.pf.pr_license["+j+"].value)");
     sum=y-sump;
    break;
   }
  }
  
  if (sum==0 && j==2)  document.pf.price.value="0";
  else document.pf.price.value="$"+sum;

}



function s()
{
  if(document.pf.price.value=="$0")
  {
    alert("Please check at least one product and choose the type of license.");
    return false;
  }
	else if(document.pf.Email.value.length < 2)
  {
    alert("Please Email.");
    return false;
  }
  else
    return true;
}