Posted By

markhope on 07/31/06

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Last Edited at 07/31/06 04:11am

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Redirect cookie once per session

/ Published in: JavaScript

Redirect a splash page using javascript. This snippet allows one redirect per session making the backwards navigation possible using the back button.

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ReDirect('/welcome');

function ReDirect (URL) {

SetCookie('SplashSkip','TRUE',1);

if (Splash == 'TRUE' && ReDirected != 'TRUE' ) {
			SetCookie('SplashReDirected','TRUE');
			window.location=(URL);
		}
	}

function getCookieVal (offset) {
	  var endstr = document.cookie.indexOf (";", offset);
	  if (endstr == -1)
	    endstr = document.cookie.length;
	  return unescape(document.cookie.substring(offset, endstr));
	}

function GetCookie (name) {
	  var arg = name + "=";
	  var alen = arg.length;
	  var clen = document.cookie.length;
	  var i = 0;
	  while (i < clen) {
	  var j = i + alen;
	  if (document.cookie.substring(i, j) == arg)
	    return getCookieVal (j);
	  i = document.cookie.indexOf(" ", i) + 1;
	  if (i == 0) break; 
	  }
	  return null;
	}

function SetCookie(name, value, expDays, path, domain, secure) {
		// Set cookie with name, value etc provided
		// in function call and date from above
		// Number of days the cookie should persist NB expDays='' or undef. => non-persistent
		if (expDays != null ) {
			var expires = new Date(); 
			expires.setTime(expires.getTime() + (expDays*24*60*60*1000));
		}	
		var curCookie = name + "=" + escape(value) +
			((expires) ? "; expires=" + expires.toGMTString() : "") +
			((path) ? "; path=" + path : "") +
			((domain) ? "; domain=" + domain : "") +
			((secure) ? "; secure" : "");
		document.cookie = curCookie;
	}
		// ]]>
	</script>

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