//*********全局变量*************************************
var iResraechUser=null;
var domain="Http://www.iresearch.cn";
var keystate=null;

//******************************************************
//启动项
//window.onload = startup;



//导航菜单
var current_child = null;
var current_parent = null;
var parent_sign = false;	//一级菜单的mouseover状态标记
var child_sign = false;	//二级菜单的mouseover状态标记
function show_child(id)
{
	//一级导航
	parent_sign = true;
	var parent = document.getElementById("first_nav_" + id);
	parent.className = "choose";
	if (current_parent){
		if (current_parent!=parent) current_parent.className = ""
	}else{
		current_parent = document.getElementById("first_nav_1");
		current_child = document.getElementById("second_nav_1");
		if (current_parent != parent) current_parent.className = ""
	}
	current_parent = parent;
	//二级导航
	child_sign = false;
	var child = document.getElementById("second_nav_"+id);
	if (child) child.className = "";
	if (current_child && current_child != child) current_child.className = "hide";	
	current_child = child;
}

var iTimeoutID = null;
function menu_back()
{
	if ( !parent_sign && !child_sign && current_parent!= source_parent)
	{
		show_child(source_parent);
	}
	window.clearTimeout(iTimeoutID);
}

function set_parent_sign()
{
	parent_sign = true;
}

function set_child_sign()
{
	child_sign = true;
}

function clear_parent_sign()
{
	parent_sign = false;
	iTimeoutID = window.setTimeout(menu_back,500);
}

function clear_child_sign()
{
	child_sign = false;
	iTimeoutID = window.setTimeout(menu_back,500);
}



function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function show_reg_tab(i){
	for(var j=1;j<6;j++){
		if(i!=j){
			document.getElementById("reg_tab_content_"+j).className="reg_tab_nk";
			document.getElementById("reg_right"+j).style.display="none";
		}else{
			document.getElementById("reg_tab_content_"+j).className="reg_tab_ck";
			document.getElementById("reg_right"+j).style.display="";
		}
	}
}
function show_reg2_tab(i){
	for(var j=1;j<5;j++){
		if(i!=j){
			document.getElementById("reg2_tab_content_"+j).className="reg2_tab_nk";
			document.getElementById("reg2_right"+j).style.display="none";
		}else{
			document.getElementById("reg2_tab_content_"+j).className="reg2_tab_ck";
			document.getElementById("reg2_right"+j).style.display="";
		}
	}
}
function show_reg3_tab(i){
	for(var j=1;j<5;j++){
		if(i!=j){
			document.getElementById("reg3_tab_content_"+j).className="reg3_tab_nk";
			document.getElementById("reg3_right"+j).style.display="none";
		}else{
			document.getElementById("reg3_tab_content_"+j).className="reg3_tab_ck";
			document.getElementById("reg3_right"+j).style.display="";
		}
	}
}
function show_reg4_tab(i){
	for(var j=1;j<4;j++){
		if(i!=j){
			document.getElementById("reg4_tab_content_"+j).className="reg4_tab_nk";
			document.getElementById("reg4_right"+j).style.display="none";
		}else{
			document.getElementById("reg4_tab_content_"+j).className="reg4_tab_ck";
			document.getElementById("reg4_right"+j).style.display="";
		}
	}
}
function show_reg5_tab(i){
	for(var j=1;j<4;j++){
		if(i!=j){
			document.getElementById("reg5_tab_content_"+j).className="reg5_tab_nk";
			document.getElementById("reg5_right"+j).style.display="none";
		}else{
			document.getElementById("reg5_tab_content_"+j).className="reg5_tab_ck";
			document.getElementById("reg5_right"+j).style.display="";
		}
	}
}