function initResize(){
	var _form = document.getElementsByTagName('div');
	for(var i=0; i<_form.length; i++){
		if(_form[i].className.indexOf('contact-form') != -1){
			var iframeTag = window.parent.document.getElementsByTagName('iframe')[0];
			iframeTag.height = _form[i].offsetHeight + 'px';
		}
	}
}

if (window.addEventListener)
	window.addEventListener("load", initResize, false);
else if (window.attachEvent && !window.opera)
	window.attachEvent("onload", initResize);