function searchByArea(area) {

	// Ìá½»±íµ¥
	SearchForm.currentpage.value = 1;
	SearchForm.province.value = area;
	SearchForm.submit();
}
function changetabs2(cla, num) {
	
}
function changetabs3(cla, num) {
	
}
function showGrade1(){
	
}