function showItems(id) {
	var target = 'cat'+id;
	var obj = document.getElementById(target);
	if (obj.style.display == 'block') {
		obj.style.display = 'none';
	} else {
		obj.style.display = 'block';
	}
}

function addUBB(target,ubb) {
	document.getElementById(target).value += ubb;
	document.getElementById(target).focus();
}

function preloadImg(img) {
	var a = new Array();
	for(i=0;i<img.length;i++) {
		a[i] = new Image();
		a[i].src = img[i];
	}
}

function switchImg(img) {
	var obj = document.getElementById('main_img');
	var obj2 = document.getElementById('main_img_link');
	obj.src = 'img/shopitems/thumbs_l/'+img;
	obj2.href = 'img/shopitems/'+img;
}