function postsend(form,to_url){
	document.cookie="href_tmp="+location.href;  
	createXHR();
	switch(to_url){
	//--
	case 'step1':
	var url='order1.php?act=step1&timeStamp='+new Date().getTime();
	break;
	//--
	}
	
	xmlHttp.open('POST',url,true);
	xmlHttp.onreadystatechange=function(){catchResult(form,to_url);};
	xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	xmlHttp.send(getFormValue(form));
}