XWK.Spinner = function() {

}

XWK.Spinner.images = new Array();
XWK.Spinner.lastOver = -1;

XWK.Spinner.init = function() {
	XWK.Spinner.capture();
}

XWK.Spinner.capture = function(node) {
	if (!node)
		node = document;
 	var imageList = XWK.getElementsByClass('spinner','input',node);
	for (var i=0; i<imageList.length; i++) {
		XWK.Spinner.register(imageList[i]);
	}	
}

XWK.Spinner.register = function(spinner) {
	var id = XWK.Spinner.images.length;
	var form = spinner.form;
	var a = document.getElementsByName('spinneradd_'+spinner.name);
	if (a && a.length == 1) {
		a[0].onclick = function() {
			XWK.Spinner.seek(spinner,1);
			return false;
		}
	}
	var a = document.getElementsByName('spinnersub_'+spinner.name);
	if (a && a.length == 1) {
		a[0].onclick = function() {
			XWK.Spinner.seek(spinner,-1);
			return false;
		}
	}
}

XWK.Spinner.seek = function(spinner,seek){
	var v = parseInt(spinner.value);
	v += seek;
	spinner.value = Math.max(1,v);
	if (spinner.onchange)
		spinner.onchange();
}


XWK.addOnInit([XWK.Spinner,"init"]);