// JavaScript Document
function getCookie(NameOfCookie){
    if (document.cookie.length > 0) {              
    begin = document.cookie.indexOf(NameOfCookie+"=");       
    if (begin != -1) {           
      begin += NameOfCookie.length+1;       
      end = document.cookie.indexOf(";", begin);
      if (end == -1) end = document.cookie.length;
        return unescape(document.cookie.substring(begin, end));
    } 
  }
  return 'GENE';
}

// set cookie's lifetime 
function setCookie(NameOfCookie, value) {
	
	var expiredays = 50000;
	var ExpireDate = new Date();
	ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));

  document.cookie = NameOfCookie + "=" + escape(value) + 
  ((expiredays == null) ? "" : "; expires=" + ExpireDate.toGMTString());
}

//delete cookie (never called in source)
function delCookie (NameOfCookie) {
  if (getCookie(NameOfCookie)) {
    document.cookie = NameOfCookie + "=" +
    "; expires=Thu, 01-Jan-90 00:00:01 GMT";
  }
}

// set cookies if source came from query string 
function setsourcekey(myRegion, mysource, mykey, myad) {
	setCookie('cookiesregion',myRegion);
	
	if (mysource=="") {
	  setCookie("mysource", "Null")
	}else{
	  setCookie("mysource", mysource)
  }

	if (mykey=="") {
	  setCookie("mykeyword", "Null")
	}else{
	  setCookie("mykeyword", mykey)
  }

	if (myad=="") {
	  setCookie("myaff", "Null")
	}else{
	  setCookie("myaff", myad)
  }
}

// set cookies if keyword came from query string
function setkeyword(myRegion, mysource, mykey, myad) {
	setCookie('cookiesregion',myRegion);
	
	if (mysource=="") {
	  setCookie("mysource", "Null")
	}else{
	  setCookie("mysource", mysource)
  }

	if (mykey=="") {
	  setCookie("mykeyword", "Null")
	}else{
	  setCookie("mykeyword", mykey)
  }

	if (myad=="") {
	  setCookie("myaff", "Null")
	}else{
	  setCookie("myaff", myad)
  }
}

// set cookies if affiliate came from query string
function setaffkey(myRegion, mysource, mykey, myad) {
	setCookie('cookiesregion',myRegion);
	
	if (mysource=="") {
	  setCookie("mysource", "Null")
	}else{
	  setCookie("mysource", mysource)
  }

	if (mykey=="") {
	  setCookie("mykeyword", "Null")
	}else{
	  setCookie("mykeyword", mykey)
  }

	if (myad=="") {
	  setCookie("myaff", "Null")
	}else{
	  setCookie("myaff", myad)
  }
}