function checkEmail(address) 
{
	
	if(address.indexOf("@") > 0 && address.indexOf(",") == -1 && address.indexOf(";") == -1 && address.substring(address.indexOf("@")+1,address.length).length - (address.substring(address.indexOf("@")+1,address.length).indexOf(".") + 1) >= 2 && address.indexOf(" ") == -1 && address.length >= 5 && address.substring(address.indexOf("@")+1,address.length).indexOf(".") > 0 && address.substring(address.indexOf("@")+1,address.length).indexOf("@") == -1)
	{
		return true;
	}	
	else
	{
		alert("Please enter a valid e-mail address.");
		document.forms.frmMain.email.focus();		
		return false;
	}
}