function changePage(page,input_id,form_id){
	if(document.getElementById(input_id) && document.getElementById(form_id)){
		document.getElementById(input_id).value = page;
		document.getElementById(form_id).submit();
	}
}
function changeSort(sort,sort_type){
	document.getElementById('sort').value = sort;
	document.getElementById('sort_type').value = sort_type;
}
function sel(obj){
	obj.checked = "checked";
}