/*
function discountPrice()
{
	
	
	
	if (checkForCoupon())
	{
		
		
		write_cookie();
		changePrice();
	}
	
	else
	{
		

		if (read_cookie())
		{
			
			
			changePrice();
		}
	}
}
*/

function checkForCoupon(coupon_name)
{
var couponCode = gup('coupon');

if (couponCode ==coupon_name)
	return true;
return false;



}


function gup( name )
{
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "blank";
  else
    return results[1];
}


function write_cookie(write_cookie_name) {
  if(document.cookie)
   {
 
	index = document.cookie.indexOf(write_cookie_name);
	
  } 
  else
   {
    index = -1;
  }

  if (index == -1)
   {
    document.cookie=write_cookie_name+"=1; expires=Monday, 1-June-2009 08:00:00 GMT;";
	
   } 
}

/*

function changePrice(price, id) {
	
objSection = document.getElementById(id + "price");


if (objSection != null) {

	var origPrice = parseFloat(price);
	var discPrice = origPrice-1;
	
	objSection.innerHTML =  "<span class='strikePrice'> $" +  price + "</span> $" + discPrice ;
}

document.getElementById('bookstore_gif').innerHTML='<img src="/princetonreview/images/bookstorecoupon.gif" hspace="0" alt="Bookstore" width="467" height="87" />';

}

*/

function read_cookie(cookie_name) {
	
if(document.cookie)
	{
		
		index = document.cookie.indexOf(cookie_name);
	
		if (index!=-1)
		{
			return true;
		}
		return false;
	}
	return false;
/*
  if(document.cookie) {
    
	document.write(index);
    if (index != -1)
	 {
      return (true);
    }
	return (false);
  }
  return (false);*/
}