ns6_7=(navigator.vendor=='Netscape6'||navigator.vendor=='Netscape');

var add=(window.opera)?24:32;

if(typeof(document.all)=="object"){ add=32; }

function resizeFrame(val){ 

    h=(ns6_7)?parent.frames['content'].document.body.offsetHeight:parent.frames['content'].document.body.scrollHeight+add;

    if(h <= 600){ h = 600; }

    document.getElementById('content').style.height=h+'px';

}