var ns4 = (document.layers)? true:false;
var ie4 = (document.all)? true:false;
var dom = (document.getElementById)? true:false;
var obj, styleObj, timer;

function moveIn() {
	obj.direct = "in";
	objLeft = (ns4)? styleObj.left : parseInt(obj.offsetLeft);
	if (objLeft<=373) {
		styleObj.left = objLeft+30+"px";
		timer = setTimeout("moveIn()",20);
	}
	else {
		styleObj.left = 403+"px";
	}
}

function moveOut() {
	obj.direct = "out";
	objLeft = (ns4)? styleObj.left : parseInt(obj.offsetLeft);
	if (objLeft>66) {
		styleObj.left = objLeft-30+"px";
		timer = setTimeout("moveOut()",20);
	}
	else {
		styleObj.left = 36+"px";
	}
}

function slide(which) {
	clearTimeout(timer);
	obj = (ns4)? document.layers[which] : (ie4)? document.all[which] : document.getElementById(which);
	styleObj = (ns4)? obj : obj.style;
	if (!obj.direct || obj.direct=="out") {
		moveIn();
	}
	else {
		moveOut();
	}
}