function changePlat()
{
	document.getElementById("bd_text").src='includes/img/bd_text_ro1.gif';
}

function changeSol()
{
	document.getElementById("bd_text").src='includes/img/bd_text_ro2.gif';
}

function changePart()
{
	document.getElementById("bd_text").src='includes/img/bd_text_ro3.gif';
}

function changeOut()
{
	document.getElementById("bd_text").src='includes/img/bd_text.gif';
}