var min=8;
var max=18;
function increaseFontSize() {
   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) {
         s += 1;
      }
      p[i].style.fontSize = s+"px"
   }
}
function decreaseFontSize() {
   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) {
         s -= 1;
      }
      p[i].style.fontSize = s+"px"
   }   
}

function iFrameHeight() {
if(document.getElementById && !(document.all)) {
h = document.getElementById('iframename').contentDocument.body.scrollHeight;
document.getElementById('iframename').style.height = h;
}
else if(document.all) {
h = document.frames('iframename').document.body.scrollHeight;
document.all.iframename.style.height = h;
}
}

function displayDivfoot(foot)
    {
		
        var divstylefoot = new String();
        divstylefoot = document.getElementById(foot).style.display;
        if(divstylefoot.toLowerCase()=="block" || divstylefoot == "")
        {
            document.getElementById(foot).style.display = "none";
        }
        else
        {
            document.getElementById(foot).style.display = "block";
        }
    }