function openWIN(URL,WName,w,h,scr)
{
	sw = screen.width-100;
	sh = screen.availHeight-100;
	mtw = (screen.width-w)/2;
	mth = (screen.availHeight-h)/2;
	popup = window.open(URL,WName,"width="+w+",height="+h+",top="+mth+",left="+mtw+",status=no,toolbar=no,scrollbars="+scr+",resizable=no,menubar=no");
	popup.focus();
}

function check_frm()
{
	if(arguments.length) var frm = arguments[0];
	for(i=0; i<frm.elements.length; i++)
	{
  		el = frm.elements[i];
	    if((el.type=='text' || el.type=='textarea') && el.value == '')
		{
			alert('Не заполнено обязательное поле!');
			el.focus(); el.select(); return false;
		}
	}
	return true;
}