function show_abc() {
	document.getElementById('div_abc').style.display = 'block';
}
function hide_abc() {
	document.getElementById('div_abc').style.display = 'none';
}
function chkfrm(pStrAlert) {
	var items = new Array();
	items = document.forms["frm_contact"].elements;
	
	for (var i = 0; i <= items.length-2; i++) {
		if ((items[i].value == "") || (items[i].value == " ")) {
			alert(pStrAlert);
			return false;
			break;
		}
	}
	return true;
}