function wxyopen(uri,x,y)
{
	window.open(uri,'',"resizable=yes, scrollbars=yes, status=yes, height="+y+", width="+x);
}
function addComment(obj, comment){
	obj.value += ' /r/n ' + comment;
	alert(obj.value);
}
function changeCategory(obj){
	var i = obj.selectedIndex;
	var href = obj.item(i).value;
	if(href!=0)
		location.href = href;
}