function checkEmpty(obj, msg){
	var formObj = document.forms['form1'].elements[obj];

	if (formObj.value == "") {
	    alert(msg);
	    formObj.style.backgroundColor = "#FFD0D0";
	    formObj.style.border = "2px solid #666";
	    formObj.focus();
	    return false;
	}
	else
	return true;
}

function rollover(div) {
	alldivs = document.getElementsByTagName("div");
	for (i=0;i<alldivs.length;i++) {
		if(alldivs[i].className.match("rollover")) {alldivs[i].style.display = "none";}
	}
	document.getElementById("r-default").style.display = "none";
	document.getElementById("r-"+div).style.display = "block";
}

function popup(url){
	window.open(url, '', 'width=400, height=350, resizable=no, scrollbars=yes');
}