function getCookie (name)
{
	var dcookie = document.cookie; 
  	var cname = name + "=";
  	var clen = dcookie.length;
 	var cbegin = 0;
  	while (cbegin < clen)
  	{
     	var vbegin = cbegin + cname.length;
    	if (dcookie.substring(cbegin, vbegin) == cname)
    	{ 
         	var vend = dcookie.indexOf (";", vbegin);
        	if (vend == -1) vend = clen;
       		return unescape(dcookie.substring(vbegin, vend));
       	}
   		cbegin = dcookie.indexOf(" ", cbegin) + 1;
  		if (cbegin == 0) break;
   	}
    return null;
}