/*function ChangeFontSize(font_size) 
{   
    var frame = document.getElementById("DivBody"); 
    if(font_size=="small")
    {
        frame.className = "SmallFont";
    }
    else if(font_size=="large")
    {
        frame.className = "LargeFont";
    }
    else
    {
        frame.className = "DefaultFont";
    }
    
}*/

function ChangeFontSize(Div,font_size) 
{   
    var frame = document.getElementById(Div); 
    if(font_size=="small")
    {
        frame.className = "SmallFont";
    }
    else if(font_size=="large")
    {
        frame.className = "LargeFont";
    }
    else
    {
        frame.className = "DefaultFont";
    }
}
function ChangeChildElementFontSize(div,font_size) 
{      
    if(!div) 
    {        
    return;      
    }      
    div = typeof div === "string" ? document.getElementById(div) : div;      
    var elms = div.getElementsByTagName("*");      
    for(var i = 0, maxI = elms.length; i < maxI; ++i) 
    {        
        var elm = elms[i];
        if(font_size=="small")
        {
            elm.className = "SmallFont";
            
        }
        else if(font_size=="large")
        {
            elm.className = "LargeFont";
        }
        else
        {
            elm.className = "DefaultFont";
        }
      }    
}