function showHide(show,group)
{	
	for(var i=0;i<group.length;i++)
	{	
		if(group[i] == show)
		{
			document.getElementById(group[i]).style.display = "block";
			document.getElementById(group[i]).disabled 		= false;
		}
		else
		{
			document.getElementById(group[i]).style.display = "none";
			document.getElementById(group[i]).disabled 		= true;
		}
	}
}

function clear_populate(default_val, object, event)
{
	switch(event)
	{
		case "clear":
			if(object.value == default_val)
				object.value = "";
			break;
		case "populate":
			if(object.value == "")
				object.value = default_val;
			break;
	}
}

function checkEmail(address) {
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(address))
		return true;
	else
		return false;
}