function turnPanel(firstPanel, secondPanel, thirdPanel,onPanel){
	document.getElementById(firstPanel).style.display = "none";
	document.getElementById(secondPanel).style.display = "none";
	document.getElementById(thirdPanel).style.display = "none";
	//Panel will be on
	document.getElementById(onPanel).style.display = "block";
}

function ford(){
	turnPanel("subaru","lincoln","mercury", "ford");
}

function subaru(){
	turnPanel("ford","lincoln","mercury", "subaru");

}

function lincoln(){
	turnPanel("ford","subaru","mercury", "lincoln");
	
}

function mercury(){
	turnPanel("ford","subaru","lincoln","mercury");
	
}