//preload image
var collimg = new Image();
collimg.src = "collapse.gif";
var expimg = new Image();
collimg.src = "expand.gif";
var Elements = 4;

function ShowHideGolfCardPlusLayer(boxID) {
	var Elements = 4;
	for (var i = 1; i <= Elements; i++) {
		if(boxID != i*100) {
			var box = document.getElementById("box"+i+"00");
			/* If the selected box is currently visible, hide it */
			box.style.display = "none";
		}
	}
	
	/* Obtain reference for the selected boxID layer and its button */
	var box = document.getElementById("box"+boxID);
	
	/* If the selected box is currently invisible, show it */
	if(box.style.display == "none" || box.style.display == "") {		
		box.style.display = "block";
	}
	/* otherwise hide it */
	else {
		box.style.display = "none";
	}
}