// JScript File

var min=8;
var max=18;
var elementArray = new Array(2);
var s;
//Get all the elements that might contain text. 
//Note: we aren't changing the H2 or H3 tags
var p = document.getElementsByTagName('p');
var li = document.getElementsByTagName('li');

elementArray[0] = p;
elementArray[1] = li;

//increase font
function increaseFontSize() {
    var s;
    
    for(var index = 0; index < elementArray.length; index++) {
        var curElements = elementArray[index];
       
        for(var i=0;i<curElements.length;i++) {
          if(curElements[i].style.fontSize) {
             s = parseInt(curElements[i].style.fontSize.replace("px",""));
          } else {
             s = 12;
          }
          if(s!=max) {
             s += 1;
          }
          curElements[i].style.fontSize = s+"px";
          
        }          
    }   
    
}

//Decrease font 
function decreaseFontSize() {
   for(var index = 0; index < elementArray.length; index++) {
        var curElements = elementArray[index];
       
        for(var i=0;i<curElements.length;i++) {
          if(curElements[i].style.fontSize) {
             s = parseInt(curElements[i].style.fontSize.replace("px",""));
          } else {
             s = 12;
          }
          if(s!=min) {
             s -= 1;
          }
          curElements[i].style.fontSize = s+"px";
        }          
    }   
}