function erase(field)
{
	if (field.value == "enter email address")
	{
		field.value="";
	}
}

function revert(field)
{
	if (field.value == "")
	{
		field.value="enter email address";
	}
}

function email_check(str)
{
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);

	if ((str.indexOf(at)==-1)													||
		(str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)	||
		(str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)	||
		(str.indexOf(at,(lat+1))!=-1)											||
		(str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)		||
		(str.indexOf(dot,(lat+2))==-1) 											||
		(str.indexOf(" ")!=-1)													||
		(str.substring(str.length - 1) == ".") )
	{
		return false;
	}

	return true;
}

function hide_confirm_box()
{
	id = "confirm_box";

	if (document.getElementById)
	{// DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else
	{
		if (document.layers)
		{//Netscape 4
			document.id.display = 'none';
		}
		else
		{//IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function submit_ecat_form()
{
	ecat_email = document.getElementById("ecatEmail").value;
	if (email_check(ecat_email))
	{
		//document.getElementById("ecatForm").submit();
		return true;
	}
	else
	{
		alert("Oops...\nThat does not look like a valid email address.\nPlease enter your email address again");
		return false;
	}
}

function validate_ecat_form(form)
{
	ecat_email = form["emailAddress"].value;
	if (email_check(ecat_email))
	{
		//document.getElementById("ecatForm").submit();
		return true;
	}
	else
	{
		alert("Oops...\nThat does not look like a valid email address.\nPlease enter your email address again");
		return false;
	}
}