var min=9;
var max=15;
var normal=12;
function increaseFontSize() 
{
    e=document.getElementById('MinimizeFont'); 
    if(e.style.display=="none")
    {e.style.display="inline";}
           ResizeLastNodes2(document.getElementById('Content'));
           function ResizeLastNodes2(ParentNode)
           {
             var counter2;
             var currentNode2;           
             for (counter2=0; counter2<ParentNode.all.length;counter2++)
           	 {	
               currentNode2 = ParentNode.all[counter2];          
               if (currentNode2.all.length != 0)
	             {
	                if(currentNode2.style.fontSize)
            			{
            				var s1 = parseInt(currentNode2.style.fontSize.replace("px",""));
            			} 
            		else { var s1 = normal;}
            		if(s1!=max)
            			{s1 += 1;} 
            		currentNode2.style.fontSize = s1+"px"
	             }
               else {currentNode2.style.fontSize = s1+"px"}
            }
                      
            if(s1>=max)
			{d=document.getElementById('MaximizeFont'); d.style.display="none";}
          }
}
function NormalFontSize() 
{
           ResizeLastNodes(document.getElementById('Content'));
           function ResizeLastNodes(ParentNode)
           {
             var counter;
             var currentNode;
             for (counter=0; counter<ParentNode.all.length;counter++)
           	 {	
               currentNode = ParentNode.all[counter];
               if (currentNode.all.length != 0)
	             {currentNode.style.fontSize = normal+"px"}
               else 
	             {currentNode.style.fontSize = normal+"px"}
            }
          }
    d=document.getElementById('MaximizeFont'); 
    if(d.style.display=="none")
    {d.style.display="inline";} 
    e=document.getElementById('MinimizeFont'); 
    if(e.style.display=="none")
    {e.style.display="inline";}
}
function decreaseFontSize()
{ 
    e=document.getElementById('MaximizeFont'); 
    if(e.style.display=="none")
    {e.style.display="inline";}

     ResizeLastNodes(document.getElementById('Content'));
           function ResizeLastNodes(ParentNode)
           {
             var counter;
             var currentNode; 
             for (counter=0; counter<ParentNode.all.length;counter++)
           	 {	
               currentNode = ParentNode.all[counter];
               if (currentNode.all.length != 0)
	             {
	                if(currentNode.style.fontSize)
            			{
            				var s = parseInt(currentNode.style.fontSize.replace("px",""));
            			} 
            		else { var s = normal;}
            		if(s!=min)
            			{s -= 1;} 
            	currentNode.style.fontSize = s+"px"
	             }
               else 
	             {currentNode.style.fontSize = s+"px"}
            }
             if(s<=min)
			    {d=document.getElementById('MinimizeFont'); d.style.display="none";}
          }
}