$.require('jquery.querystring.js');
var url = document.URL;
var num = 1;

var indexarea = $.getQueryString({ ID:"indexArea" });
var lower_indexarea = indexarea.toLowerCase();

var products = /supply|factory-2-1/;
var selloffers = /export|factory-2-2/;
var buyoffers = /purchase/;
var companies = /companies/;

if(products.test(url) || lower_indexarea == 'product'){
	num = 2;
}else	if(selloffers.test(url) || lower_indexarea == 'sell'){
	num = 3;
}else if(buyoffers.test(url) || lower_indexarea == 'buy'){
	num = 4;
}else if(companies.test(url) || lower_indexarea == 'company'){
	num = 5;
}

var obj = $("#nat"+num);
obj.addClass("head_menu_index");
//默认选中的搜索类型
if(num != 1){
	var inputnum = num - 2;
	var inputid = 'input' + inputnum;
	$('#' + inputid).click();
}
function form(id)
{
	var searchmain = "";
	var searchmain2 = "";
	for (var i = 0;i < 4;i++)
	{
		var searchtitle = document.getElementById("input" + i);
		if(i != id)
		{
			searchmain2 = document.getElementById("form" + i);
			searchmain2.style.display = "none";
		}		
		if (i == id)
		{
			searchtitle.className = 'sousuo_lxbg';
		}
		else
		{
			searchtitle.className = 'sousuo_lx';
		}
	}	
	searchmain = document.getElementById("form" + id);
	searchmain.style.display = "";	
}