var tu=new Array();
ch="a0308";

for (j=0;j<18;j++){tu[j]=new Array();}

for (j=0;j<=6;j++)
{
	k=j+68;
	tu[j][0]=new Image(16,16);
	tu[j][0].src="http://image2.sina.com.cn/club/auto/images/new/"+ch+k+".gif";
}

for (j=0;j<=6;j++)
{
	k=j+68;
	tu[j][1]=new Image(16,16);
	tu[j][1].src="http://image2.sina.com.cn/club/auto/images/new/"+ch+k+"a.gif";
}


tu[7][0]=new Image(16,16);tu[7][0].src="http://image2.sina.com.cn/club/auto/images/new/a030815.gif";
tu[7][1]=new Image(16,16);tu[7][1].src="http://image2.sina.com.cn/club/auto/images/new/a030815a.gif";

tu[8][0]=new Image(46,27);tu[8][0].src="http://image2.sina.com.cn/club/auto/images/new/t01.gif";
tu[8][1]=new Image(46,27);tu[8][1].src="http://image2.sina.com.cn/club/auto/images/new/t01a.gif";

tu[9][0]=new Image(46,27);tu[9][0].src="http://image2.sina.com.cn/club/auto/images/new/t02.gif";
tu[9][1]=new Image(46,27);tu[9][1].src="http://image2.sina.com.cn/club/auto/images/new/t02a.gif";

tu[10][0]=new Image(16,16);tu[10][0].src="http://image2.sina.com.cn/club/auto/images/new/a0308a84.gif";
tu[10][1]=new Image(16,16);tu[10][1].src="http://image2.sina.com.cn/club/auto/images/new/a0308a84a.gif";

tu[11][0]=new Image(16,17);tu[11][0].src="http://image2.sina.com.cn/club/auto/images/new/a0308b01.gif";
tu[11][1]=new Image(16,17);tu[11][1].src="http://image2.sina.com.cn/club/auto/images/new/a0308b01a.gif";

function chimg(arg)
{
	if(arg==0)
	{
		document.d1.src=tu[8][1].src;
		document.d2.src=tu[9][1].src;
	}
	else
	{
		document.d1.src=tu[8][0].src;
		document.d2.src=tu[9][0].src;
	}
}

var key=true;
var timeslice;
ns=navigator.appName == "Netscape"

function show_menu() {

	document.d1.src=tu[8][1].src;
	document.d2.src=tu[9][1].src;
	
	if( ns ){
		key = true;
		document.Forum_Layer.visibility = "show";
		
	} else {
		key = true;
		Forum_Layer.style.visibility="visible";
	}
}
function op_menu() {
	if( key ) {
		timeslice = setTimeout("close_menu();",500);
	}	
}

function close_menu() {
	
	document.d1.src=tu[8][0].src;
	document.d2.src=tu[9][0].src;	
	
	if( ns ){
		key = false;	
		document.Forum_Layer.visibility = "hide";		
	} else {
		key = false;
		Forum_Layer.style.visibility = "hidden";
	}
}

function set_over(){
	key = true;
	clearTimeout(timeslice);
}

function auto_search()
{
	if(document.f1.type.value == 3)
	{
		document.f1.action="http://autocgi.sina.com.cn/cgi-bin/search/index.cgi";
	}
	else if(document.f1.type.value == 2)
	{
		document.f1.action="http://autocgi.sina.com.cn/cgi-bin/search/group.cgi";
	}
	else if(document.f1.type.value == 1)
	{
		document.f1.action="http://autocgi.sina.com.cn/cgi-bin/search/brand.cgi";
	}
	document.f1.submit();
}