var ht = document.body.clientHeight-130;
var wt = document.body.clientWidth-460;
document.write('<style type="text/css">');
document.write('.iframe {');
document.write('width:'+wt+'px; height:'+ht+'px;');
document.write('border:1px solid #f00;');
document.write('overflow:auto;padding:5px;margin:0px;');
document.write('}');
document.write('</style>');