window.onload = function() {
	externalLinks(); //新窗口
	GetParameter(); //html参数传递
	preloadImages(); //鼠标指向转换图片
	(new Image()).src = "../images/menu_home.jpg";
	(new Image()).src = "../images/menu_home_c.jpg";
	(new Image()).src = "../images/menu_news.jpg";
	(new Image()).src = "../images/menu_news_c.jpg";
	(new Image()).src = "../images/menu_aboutus.jpg";
	(new Image()).src = "../images/menu_aboutus_c.jpg";
	(new Image()).src = "../images/menu_products.jpg";
	(new Image()).src = "../images/menu_products_c.jpg";
	(new Image()).src = "../images/menu_feedback.jpg";
	(new Image()).src = "../images/menu_feedback_c.jpg.jpg";
	(new Image()).src = "../images/menu_contact.jpg";
	(new Image()).src = "../images/menu_contact_c.jpg";
}

//新窗口
function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i];
		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external")
			anchor.target = "_blank";
	}
}

//分类产品显示，html?参数传递&无刷新
function GetParameter() {
	var hrefwhat = window.location.href;
	var hreflen = hrefwhat.indexOf("?");
	if (hreflen != -1) {
		var para = hrefwhat.split("?");
		zirClass(para[1]);
	}
}
function zirClass(classid) {
	var cid = classid.split("_");
	for (var ci=0; ci<=13; ci++) {
		if(ci == cid[1]) {
			document.getElementById("classc"+ci).style.color = "#FF6600";
			document.getElementById("class_"+ci).style.display = "";
		}
		else {
			document.getElementById("classc"+ci).style.color = "#FFFFFF";
			document.getElementById("class_"+ci).style.display = "none";
		}
	}
}

//分类页面的无刷新分页
function zirClassPage(n_p_m) {
	var cpid = n_p_m.split("_");
	for (var cpi=1; cpi<=3; cpi++) {
		if(cpi == cpid[2]) {
			document.getElementById(cpid[0]+"_p_"+cpi).style.display = "";
		}
		else {
			document.getElementById(cpid[0]+"_p_"+cpi).style.display = "none";
		}
	}
}

//产品小图无刷新分页
function zirImgsPage(imgs_n) {
	var imgsmallid = imgs_n.split("_");
	for (var imgsi=1; imgsi<=2; imgsi++) {
		if(imgsi == imgsmallid[1]) {
			document.getElementById("imgs_"+imgsi).style.display = "";
		}
		else {
			document.getElementById("imgs_"+imgsi).style.display = "none";
		}
	}
}

//产品大图动态链接
function zirClickImgb() {
	var imgb_src = document.getElementById("zirCimg").src;
	var imgb_600 = imgb_src.split("340/");
	window.open(imgb_600[0]+imgb_600[1], "");
	return false;
}

//鼠标指向转换图片
function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		preloadFlag = true;
	}
}

//About us 的无刷新分页
function zirAboutusClass(aboutusid) {
	var ausid = aboutusid.split("_");
	for (var ausi=0; ausi<=1; ausi++) {
		if(ausi == ausid[1]) {
			document.getElementById("aboutus_"+ausi).style.display = "";
		}
		else {
			document.getElementById("aboutus_"+ausi).style.display = "none";
		}
	}
}