function Checktextsize()
  {

       var b = get_cookie('clickedbutton');
       var a = get_cookie('textsize');
             if (a != "")
            {
                changeFontSize(a,b);
            }
            else
            {
               var Firstletterimage = document.getElementById('imgtextsize1');
               Firstletterimage.src='imgs/icons/textsizeselected1.gif';    
            }

 }  
 
 
function get_cookie(Name) {
  var search = Name + "="
  var returnvalue = "";
  if (document.cookie.length > 0) {
    offset = document.cookie.indexOf(search)
    // if cookie exists
    if (offset != -1) { 
      offset += search.length
      // set index of beginning of value
      end = document.cookie.indexOf(";", offset);
      // set index of end of cookie value
      if (end == -1) end = document.cookie.length;
      returnvalue=unescape(document.cookie.substring(offset, end))
      }
   }
  return returnvalue;
}

 
 
function changeFontSize(inc,imagecall)
{ 
var calledimage
calledimage = imagecall.id;

if (calledimage == undefined)
{
calledimage = get_cookie('clickedbutton')
}

document.cookie="textsize="+inc;
document.cookie="clickedbutton="+calledimage;

var p = document.getElementsByTagName('body');
  for(n=0; n<p.length; n++) 
  {
             var imagesize = document.getElementById('img'+ calledimage);
             
               var i= 1;
               for(i=1; i<=3; i++) 
                               {       
                var imagesizesetofthree = document.getElementById('imgtextsize'+ i);
                imagesizesetofthree.src='imgs/icons/textsize'+ i + '.gif';   
                        
                switch (calledimage)
                {
                case 'textsize'+i:
                imagesize.src='imgs/icons/textsizeselected'+ i + '.gif';
                break;
                }
                }
             p[n].style.fontSize = inc + 'px';   
  }
}