var min=12;
      var standard=(readCookie('txtsize') == null) ? 12 : readCookie('txtsize');// edited
      var max=25;

      function increaseFontSize() {
         var p = document.getElementsByTagName('td');
         var q = document.getElementsByTagName('strong'); 
         for(i = 0; i < p.length; i++) {
            if(p[i].style.fontSize) {
               var s = parseInt(p[i].style.fontSize.replace("pt",""));  
            } else {   
               var s = 12;
            }
            if(s!=max) {
               s += 1; 
            }
            p[i].style.fontSize = s+"pt";
         }
         
         for(i = 0; i < q.length; i++) {
            if(q[i].style.fontSize) {
               var r = parseInt(q[i].style.fontSize.replace("pt",""));  
            } else {   
               var r = 12;
            }
            if(r!=max) {
               r += 1; 
            }
            
            q[i].style.fontSize = r+"pt";
         }
         
         
         
          createCookie('txtsize',s);// added
      };
      
      function resetFontSize() {
          standard = readCookie('txtsize')
         var p = document.getElementsByTagName('td');
         var q = document.getElementsByTagName('strong'); 
         
         for(i=0;i<p.length;i++) {
            p[i].style.fontSize = standard+"pt";
         }
         
         for(i=0;i<q.length;i++) {
            q[i].style.fontSize = standard+"pt";
         }
      };
      
      function decreaseFontSize() {
         var p = document.getElementsByTagName('td');
         var q = document.getElementsByTagName('strong');   
         for(i=0;i<p.length;i++) {
            if(p[i].style.fontSize) {
               var s = parseInt(p[i].style.fontSize.replace("pt",""));
            } else { 
               var s = 11;
            }  
            if(s!=min) {
               s -= 1;
            }
            p[i].style.fontSize = s+"pt"; 
         }
         
         
         
         for(i=0;i<q.length;i++) {
            if(q[i].style.fontSize) {
               var r = parseInt(q[i].style.fontSize.replace("pt",""));
            } else { 
               var s = 11;
            }  
            if(s!=min) {
               r -= 1;
            }
            q[i].style.fontSize = r+"pt"; 
         }
          createCookie('txtsize',s);// added
      };


/*
added all below
*/

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 null;
}