function do_focus_pass(obj){
	document.getElementById(obj).style.display='none';
	document.getElementById("password").style.display='';
	document.getElementById("password").focus();
}
function do_blur_pass(obj,str){
	if(obj.value==''){
		document.getElementById("password").style.display='none';
		document.getElementById("mask").style.display='';
		document.getElementById("mask").value=str;
	}
}

function do_focus(obj,str){
	if(obj.value == str)
		obj.value='';
}
function do_blur(obj,str){
	if(obj.value==''){
		obj.value = str;
	}
}