function openWindow(URL, WIDTH, HEIGHT) { 
	var w = ((screen.width-WIDTH)/2);
	var h = ((screen.height-HEIGHT)/2);
	popupWin = window.open(URL, 'remote', 'scrollbars,resizable,width='+WIDTH+',height='+HEIGHT+',top='+h+',left='+w+'');
}

function clearDefault(field){
	if (field.defaultValue == field.value) {
		field.value = "";
	}
}

function show() {
	for(var I=0;I<arguments.length;I++) {
		var obj=document.getElementById(arguments[I]);
		obj.style.display = '';
	}
}

function hide() {
	for(var I=0;I<arguments.length;I++) {
		var obj=document.getElementById(arguments[I]);
		obj.style.display = 'none';
	}
}