var calCache = [];
function changeTab(obj, content, normal, active){	
	$button = $('a[rel*="'+obj.rel+'"]');
	$button.removeClass(active);
	$button.addClass(normal);
	$(obj).addClass(active);
	$('.' + obj.rel).hide();		
	$('#'+content).show();
}

function inputOnFocus(field, defaultVal){
	if(field.value==defaultVal){ field.value = ''; }
}
function inputOnBlur(field, defaultVal){
	if(field.value==''){ field.value=defaultVal;}
}

function submitenter(myfield,e){
	var keycode;
	if (window.event) keycode = window.event.keyCode;
	else if (e) keycode = e.which;
	else return true;
	
	if (keycode == 13){
	   myfield.form.submit();
	   return false;
	}else return true;
}

function onsearchsubmit(field){
	option=1;
	for( i = 0; i < field.opt.length; i++ ){
		if( field.opt[i].checked == true )
			option = field.opt[i].value;
	}
	
	if (option == 1){
		$('#txt_quick_search').attr('name', 'alphabet');		
		field.action='/doanh-nghiep/cong-ty/index.html';
	}else{
		$('#txt_quick_search').attr('name', 'key');
		field.action='/tin-tuc/tim-kiem/index.html';
	}
}
function submitsearch(myfield, e){
	var keycode;
	if (window.event) keycode = window.event.keyCode;
	else if (e) keycode = e.which;
	else return true;
	
	if (keycode == 13){
		 myfield.form.submit();
	   return false;
	}else return true;
}
function changesearch(obj, url){
	obj.form.action=url;
}