function chkScrollHeight(obj){
	aID = obj.id;
	// if contentDocument exists, W3C compliant (Mozilla)
	if (document.getElementById(aID).contentDocument){
		if (aID == "a03") {
			obj.style.height = document.getElementById(aID).contentDocument.body.scrollHeight + 20;
		} else {			
			obj.style.height = document.getElementById(aID).contentDocument.body.scrollHeight;
		}
	}
	else {
	// IE
	obj.style.height = document.frames(aID).document.body.scrollHeight;
	// alert(document.frames(aID).document.body.scrollHeight);
	}
}