var now_h=document.body.scrollHeight
var iFrame = findIFrame(window); 
function findIFrame(win) { 
        var ifs = win.parent.document.getElementsByTagName("IFRAME"); 
        var fs = win.parent.document.frames; 
         
        for (var i=0; i<fs.length; i++) { 
                if (fs[i] == win) 
                        return ifs[i]; 
        } 
} 
var chk_ = 0 ;

function counting_resize(){
	if(iFrame != null ){
      iFrame.style.height = document.body.scrollHeight ;
	  
	}
}
counting_resize();
setInterval("counting_resize()",50);