function menu_js(page,btn){
	if(page=='jieshao'){
		toInstruction(btn);
	}
	if(page=='chanpin'){
		toProduct(btn);
	}
	if(page=='hezuo'){
		toTogether(btn);
	}
	if(page=='jishu'){
		toTechnology(btn);
	}
	if(page=='anli'){
		toSample(btn);
	}
	if(page=='hezuojiameng'){
		toJoin(btn);
	}
	if(page=='xinwen'){
		toNews(btn);
	}
	if(page=='zhaopin'){
		toJob(btn);
	}
}
function toJob(btn){ 
	if(btn==0){
		changContent("/plus/list.php?tid=139","tite_21.jpg");
	}
	if(btn==1){
		changContent("/plus/list.php?tid=140","tite_22.jpg");
	}
}
function toNews(btn){
	if(btn==0){
		changContent("/plus/list.php?tid=137","tite_19.jpg");
	}
	if(btn==1){
		changContent("/plus/list.php?tid=138","tite_20.jpg");
	}
}
function toJoin(btn){
	if(btn==0){
		changContent("/plus/list.php?tid=141","tite_23.jpg");
	}
}

function toSample(btn){
	if(btn==0){
		changContent("/plus/list.php?tid=133","tite_24.jpg");
	}
}

function toTogether(btn){
	if(btn==0){
		changContent("/html/hezuohuoban/20091210/213.html","tite_13.jpg");
	}
	if(btn==1){
		changContent("/html/hezuohuoban/20091210/214.html","tite_14.jpg");
	}
	if(btn==2){
		changContent("/html/hezuohuoban/20091212/218.html","tite_15.jpg");
	}

}
function toTechnology(btn){
	if(btn==0){
		changContent("/html/jishuzhichi/20080816/166.html","tite_16.jpg");
	}
	if(btn==1){
		changContent("/html/jishuzhichi/20091211/215.html","tite_17.jpg");
	}
	if(btn==2){
		changContent("/html/jishuzhichi/20091211/216.html","tite_18.jpg");
	}
	if(btn==3){
		changContent("/html/jishuzhichi/20091211/217.html","tite_18.jpg");
	}
}
function toProduct(btn){
	if(btn==0){
		changContent("/html/fenleixinxi/chanpinjiazu/chanpshuom/20100719/298.html","tite_8.jpg");
	}
	if(btn==1){
		changContent("/plus/list.php?tid=133","tite_9.jpg");
	}
	if(btn==2){
		changContent("/plus/list.php?tid=134","tite_10.jpg");
	}
	if(btn==3){
		changContent("/plus/list.php?tid=135","tite_11.jpg");
	}
	if(btn==4){
		changContent("/plus/list.php?tid=136","tite_12.jpg");
	}
}
function toInstruction(btn){
	if(btn==0){
		changContent("/html/gongsijianjie/20080116/130.html","tite_1.jpg");
	}
	if(btn==1){
		changContent("/html/gongsijianjie/20080815/153.html","tite_2.jpg");
	}
	if(btn==2){
		changContent("/html/gongsijianjie/20080815/154.html","tite_3.jpg");
	}
	if(btn==3){
		changContent("/html/gongsijianjie/20080815/155.html","tite_4.jpg");
	}
	if(btn==4){
		changContent("/html/gongsijianjie/20080815/156.html","tite_5.jpg");
	}
	if(btn==5){
		changContent("/html/gongsijianjie/20080815/157.html","tite_6.jpg");
	}
	if(btn==6){
		changContent("/html/gongsijianjie/20100106/259.html","tite_7.jpg");
	}
}

function nav_js(btn){
	if(btn == 0){
		window.location.href="/plus/list.php?tid=113";
	}
	if(btn == 1){
		window.location.href="/plus/list.php?tid=97";
	}
		if(btn == 2){
		window.location.href="/plus/list.php?tid=132";
	}
		if(btn == 3){
		window.location.href="/plus/list.php?tid=129";
	}
	if(btn == 9){
		window.location.href="/index.html";
	}
}

function changContent(url,img){
		var imagesrc = document.getElementById("title_image");
		var pathstart = imagesrc.src.lastIndexOf("/");
		var path = imagesrc.src.substring(0,pathstart);
		imagesrc.src = path+"/"+img;
		var framBody = document.getElementById("content_frame");
		framBody.src = url;
}	

function iframeHeight(){
	var framBody = document.getElementById("content_frame");
	var subWeb = document.frames?document.frames["content_frame"].document:frameBody.contentDocument;
	if(framBody !=null && subWeb!= null){
		 framBody.height = subWeb.body.scrollHeight < 700?700:subWeb.body.scrollHeight;
	}
}
 
function toUrl(ix){
	if(ix == 1){
		window.location.href="/plus/list.php?tid=109";
	}
		if(ix == 2){
				window.location.href="/plus/list.php?tid=105";
	}
		if(ix == 3){
				window.location.href="/plus/list.php?tid=114";
	}
}