ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false
function init() {
	if (ns4) block = document.blockDiv
	if (ie4) block = blockDiv.style
	block.xpos = parseInt(block.left)
}
function slide() {
	if (block.xpos < 6) {
		block.xpos += 15	
		block.left = block.xpos
		setTimeout("slide()",30)
	}
}
function slideback() {
	if (block.xpos >-240) {
		block.xpos -= 15
		block.left = block.xpos
		setTimeout("slideback()",30)
	}
}
function restart() {
	block.xpos = 50
	block.left = block.xpos
}
function moveTo(obj,x,y) {
	obj.xpos = x
	obj.ypos = y
	obj.left = obj.xpos
	obj.top = obj.ypos
}