function setField(field,name,type) {
	if (field.value == name) {
		field.value = "";
		field.style.color = "#000";
		if (type == 1) field.type = "password";
	}
}



var curTab = 1;
	
function changeTab(tab) {
	if (curTab != tab) {
		document.getElementById("tab"+curTab).className = "nc";
		document.getElementById("tabcon"+curTab).style.display = "none";
		document.getElementById("tab"+tab).className = "current";
		document.getElementById("tabcon"+tab).style.display = "block";
		curTab = tab;
	}
}