function updatehidden(newvalue,stname) {
// newvalue = new or used.  itemname is name of hidden element. Image swap is itemname+newvalue
switch (stname) {
 case 1:
document.formname1.cartype.value=newvalue;
 break;
 case 2:
document.formname2.cartype.value=newvalue;
 break;
  case 3:
document.formname3.cartype.value=newvalue;
 break;
  case 4:
document.coupon.cartype.value=newvalue;
 break;
}
var itemon="formname" + stname +newvalue;
var itemoff = (newvalue=="new") ? "formname" + stname +"used" : "formname" + stname +"new";
/*styleProp="backgroundImage";
alert(itemon);
var x = document.getElementById(itemon);
var a = document.getElementById(itemoff);
	if (x.currentStyle) {
		var y = x.currentStyle[styleProp];
		var b = a.currentStyle[styleProp];
	}else if (window.getComputedStyle) {
		var styleProp="background-image";
		var y = document.defaultView.getComputedStyle(x,null).getPropertyValue(styleProp);
		var b = document.defaultView.getComputedStyle(a,null).getPropertyValue(styleProp);
		}
document.getElementById(itemoff).style.backgroundImage=y;
document.getElementById(itemon).style.backgroundImage=b;
*/
document.getElementById(itemon).setAttribute("class", "fif_on");
document.getElementById(itemoff).setAttribute("class", "fif_off");
document.getElementById(itemon).setAttribute("className", "fif_on");
document.getElementById(itemoff).setAttribute("className", "fif_off");
}

function change_fif(changeitem) {

 if (changeitem=="FiF_Price") {
 		document.getElementById("FiF_Make").style.visibility = "hidden";
		document.getElementById("FiF_Body").style.visibility = "hidden";
		document.getElementById("FiF_Price").style.visibility = "visible";
 } else if (changeitem=="FiF_Body") { 		
 		document.getElementById("FiF_Make").style.visibility = "hidden";
		document.getElementById("FiF_Price").style.visibility = "hidden";
		document.getElementById("FiF_Body").style.visibility = "visible";
 } else {
 		document.getElementById("FiF_Body").style.visibility = "hidden";
		document.getElementById("FiF_Price").style.visibility = "hidden";
		document.getElementById("FiF_Make").style.visibility = "visible";
 }
}