var min=8;
var max=18;
var sizes = 0;
function increaseFontSize() {
   var p = document.getElementsByTagName('body');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=max) {
         s += 1;
      }
      p[i].style.fontSize = s+"px";
      //this.sizes = s;
      //return this.sizes;
      //alert(this.sizes);
      
   }
   //setCookie('font_size',s,1);
   return s;
}
function decreaseFontSize() {

   var p = document.getElementsByTagName('body');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=min) {
         s -= 1;
      }
      p[i].style.fontSize = s+"px";
      //this.sizes = s;
      //return this.sizes;
      //alert(this.sizes);
      
   }  
   //setCookie('font_size',s,1); 
   return s;
}


function mediumFontSize() {

   var p = document.getElementsByTagName('body');
   for(i=0;i<p.length;i++) {

	  s = 11;
      p[i].style.fontSize = s+"px";
      //this.sizes = s;
      //return this.sizes;
      //alert(this.sizes);
      
   } 
   return s; 
   //setCookie('font_size',s,1); 
}


function setSize(font_size)
{
   var p = document.getElementsByTagName('body');
   for(i=0;i<p.length;i++) {

	  //s = 11;
      p[i].style.fontSize = font_size+"px";
   }   
}


function setCookie(c_name1,value1,expiredays)
{
	alert(value1);
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie = c_name1+ "=" +escape(value1)+((expiredays==null) ? "" : ";expires="+exdate.toUTCString());
	alert('get'+getCookie('font_size'));
}

function getCookie(c_name)
{
	if (document.cookie.length>0)
	{
			c_start=document.cookie.indexOf(c_name + "=");
			if (c_start!=-1)
			{
				c_start=c_start + c_name.length+1;
				c_end=document.cookie.indexOf(";",c_start);
				if (c_end==-1) c_end=document.cookie.length;
				return unescape(document.cookie.substring(c_start,c_end));
			}
	}
	return "";
}