function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
 }
 function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
   var c = ca[i];
   while (c.charAt(0)==' ') {
	  c = c.substring(1,c.length);
	 }
   if(c.indexOf(nameEQ) == 0) {
	  return c.substring(nameEQ.length,c.length);
	 }
  }
  return "";
 }
 function eraseCookie(name) {
	createCookie(name,"",-1);
 }

 function strip(s1,s2) {
  while(s2.indexOf(s1)>-1){
   s2 = s2.substring(0,s2.indexOf(s1)) + s2.substring(s2.indexOf(s1)+1,s2.length);
   if(s2.substring(0,1)==s1){
    s2 = s2.substring(1,s2.length);
   }
  } return s2;
 }