function doReady(){

	document.getElementById("c2_v2").style.display="none";
	document.getElementById("c2_v3").style.display="none";
	document.getElementById("c2_v4").style.display="none";
}


function show1(){
	document.getElementById("c2_v1").style.display="block";
	document.getElementById("c2_v2").style.display="none";
	document.getElementById("c2_v3").style.display="none";
	document.getElementById("c2_v4").style.display="none";


}
function show2(){
	document.getElementById("c2_v1").style.display="none";
	document.getElementById("c2_v2").style.display="block";
	document.getElementById("c2_v3").style.display="none";
	document.getElementById("c2_v4").style.display="none";


}
function show3(){
	document.getElementById("c2_v1").style.display="none";
	document.getElementById("c2_v2").style.display="none";
	document.getElementById("c2_v3").style.display="block";
	document.getElementById("c2_v4").style.display="none";


}
function show4(){
	document.getElementById("c2_v1").style.display="none";
	document.getElementById("c2_v2").style.display="none";
	document.getElementById("c2_v3").style.display="none";
	document.getElementById("c2_v4").style.display="block";

}