var min_1=8;
var max_1=18;
var min_2=12;
var max_2=24;

function increaseFontSize() {
   var p = document.getElementsByTagName('span');
   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_1) {
         s += 1;
      }
      p[i].style.fontSize = s+"px"
   }

var p = document.getElementsByTagName('h2');
for(i=0;i<p.length;i++) {
   if(p[i].style.fontSize) {
      var s = parseInt(p[i].style.fontSize.replace("px",""));
   } else {
      var s = 16;
   }
   if(s!=max_2) {
      s += 1;
   }
   p[i].style.fontSize = s+"px"
}

var p = document.getElementsByTagName('p');
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_2) {
      s += 1;
   }
   p[i].style.fontSize = s+"px"
}

var p = document.getElementsByTagName('li');
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_2) {
      s += 1;
   }
   p[i].style.fontSize = s+"px"
}

var p = document.getElementsByTagName('td');
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_2) {
      s += 1;
   }
   p[i].style.fontSize = s+"px"
}

}
function decreaseFontSize() {
   var p = document.getElementsByTagName('span');
   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_1) {
         s -= 1;
      }
      p[i].style.fontSize = s+"px"
   }   


var p = document.getElementsByTagName('h2');
for(i=0;i<p.length;i++) {
   if(p[i].style.fontSize) {
      var s = parseInt(p[i].style.fontSize.replace("px",""));
   } else {
      var s = 16;
   }
   if(s!=min_2) {
      s -= 1;
   }
   p[i].style.fontSize = s+"px"
}   
var p = document.getElementsByTagName('p');
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_1) {
      s -= 1;
   }
   p[i].style.fontSize = s+"px"
}   
var p = document.getElementsByTagName('li');
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_1) {
      s -= 1;
   }
   p[i].style.fontSize = s+"px"
}
var p = document.getElementsByTagName('td');
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_1) {
      s -= 1;
   }
   p[i].style.fontSize = s+"px"
}
}






function trans(element,percentage) {
 var i, count, objStyle, filterValue, opacityValue;
 if(document.getElementById) {
  if(typeof(element)=="object" && element) { obj=element; }
  else if (document.getElementsByName(element) && document.getElementsByName(element)[0]) { obj=document.getElementsByName(element); }
  else if (document.getElementById(element)) { obj=document.getElementById(element); }
  else if (document.getElementsByTagName && document.getElementsByTagName(element) && document.getElementsByTagName(element)[0]) { obj=document.getElementsByTagName(element); }
  else { obj=false; }
  if(obj) {
   percentage=(typeof(percentage)=="undefined")?50:100-percentage;
   filterValue="Alpha(opacity="+percentage+")";
   opacityValue=""+percentage/100;
   count=(obj.length)?obj.length:1;
   for(i=0;i<count;i++) {
    objStyle=(obj.length)?obj[i].style:obj.style;
    objStyle.filter=filterValue;
    objStyle.MozOpacity=opacityValue;
    objStyle.KhtmlOpacity=opacityValue;
    objStyle.opacity=opacityValue;
   }
  }
 }
}