产品比较框
\n" +
"![](\"http://image.yesky.com/TLimages/product/productimg/com_7.gif\"/)
"
if (cookiecatalogid == catalogid) {
comparabilityProductSpan.innerHTML += strHtml;
} else {
comparabilityProductSpan.innerHTML = strHtml;
}
}
} catch(e) {
return false;
}
return true;
}
function getComparabilityProduct() { //把cookie中的字符串取出来组成一个以逗号分开的字符串。
var productlist = getComparabilityProductByObject();
var ids = "";
if (productlist.length > 1) {
for (var i = 0; i < productlist.length; i++) {
if (i == 0) {
ids += productlist[i].productid
} else {
ids += "," + productlist[i].productid
}
}
} else {
alert("至少选择2件以上的产品进行比较！");
}
return ids;
}
function viewComparabilityProduct() { //打开新页面时。把cookie中的数据读出来显示在对比框中。
var productlist = getComparabilityProductByObject();
if (productlist.length > 0) {
var strHtml = "";
for (var i = 0; i < productlist.length; i++) {
strHtml += ""
}
comparabilityProductSpan.innerHTML = strHtml;
}
}
function removeComparabilityProduct(productid, ischeck) {//从cookie中移动一个产品。同时也从对比框中移除。
var productlist = getComparabilityProductByObject();
if (ischeck) { //移除时检查看是否有2个。
if (productlist.length <= 2) {
alert("至少要有2个产品进行对比");
return false;
}
}
var removeChildDiv_1 = document.getElementById("comparabilityAproduct" + productid + "_1");
var removeChildDiv_2 = document.getElementById("comparabilityAproduct" + productid + "_2");
if (removeChildDiv_1 != null) {
comparabilityProductSpan.removeChild(removeChildDiv_1);
}
if (removeChildDiv_2 != null) {
comparabilityProductSpan.removeChild(removeChildDiv_2);
}
var productids = "";
for (var i = 0; i < productlist.length; i++) { //把cookie中的产品出取出来。去掉要移除的产品ID再重新组合起来。放进cookie中。
if (productlist[i].productid != productid) {
if (productids.length < 1) {
productids = productlist[i].productid + "|" + productlist[i].productname;
} else {
productids += ("###" + productlist[i].productid + "|" + productlist[i].productname);
}
}
}
if (productids.length > 0) {
setProductCookie("productid", productids, opteionObj);
} else {
setProductCookie("productid", "", opteionObj);
}
return true;
}
function comparabilityProduc() { //比较。。。。。
var ids = getComparabilityProduct();
if (ids != null && ids != "") {
window.open(v_mainurl+"/compare/productcompare.do?surl="+v_surl+"&productids=" + ids);
}
}
function deleteAllComparability() { //册除加入到cookie的分类的产品
setProductCookie("productid", "", opteionObj);
setProductCookie("catalogid", "", opteionObj);
comparabilityProductSpan.innerHTML = "";
return false;
}
function getComparabilityProductByObject() { //把分类ID。产品名。产品ID。从cookie中了出封装成一个Ojbect对象数组。。
var productlist = new Array();
var cookiecatalogid = getProductCookie("catalogid");
var productIds = getProductCookie("productid");
if (productIds && productIds.length > 0) {
var allProduct = productIds.split("###");
for (var i = 0; i < allProduct.length; i++) {
var aProduct = allProduct[i].split("|");
var obj = new Object();
obj.productid = aProduct[0];
obj.productname = aProduct[1];
obj.catalogid = cookiecatalogid;
productlist[productlist.length] = obj;
}
}
return productlist;
}
function setComparabilityProductToCookie(catalogid, productid, productname) { //写产品到cookie
var productlist = getComparabilityProductByObject();
if (productlist.length >= 5) { //如果有5个产品，则 超过就不再添加进cookie
alert("一次只能比较5个同类型的产品！")
return false;
}
var cookiecatalogid = getProductCookie("catalogid");
var isIncookie = false;
if (cookiecatalogid != catalogid) { //新加的产品分类是否和原来的分类相同。不相同则更新分类的cookie
setProductCookie("catalogid", catalogid, opteionObj);
} else { //新加的产品是新的分类。则不用检查产品是否存在。无论存在都会更新cookie
for (var i = 0; i < productlist.length; i++) { //查当前增加的产品是否已经存在于cookie中。
if (productlist[i].productid == productid) {
isIncookie = true;
break;
}
}
}
if (!isIncookie) { //没有在cookie中则添加进cookie
if (cookiecatalogid != catalogid) { //如果是不同的分类，可清除原来已经添加的产品
setProductCookie("productid", productid + "|" + productname, opteionObj, opteionObj);
} else {
var cookieProductStr = getProductCookie("productid");
if (cookieProductStr.length > 0) { //计算出要添加进cookeis的产品字符串。
cookieProductStr += ("###" + productid + "|" + productname);
} else {
cookieProductStr = productid + "|" + productname;
}
setProductCookie("productid", cookieProductStr, opteionObj);
}
} else {
alert("[" + productname + "] 已在对比框中！")
return false;
}
return true;
}
function showHiddenComparabilityDiv(isView) { //显示关闭对比框。 是不明是
var div = document.getElementById('flowComparabilityDiv')
if (div.style.display == "none") {
showElement(div)
} else {
hiddenElement(div);
}
}
function hiddenElement(obj) {//隐藏元素
obj.style.display = "none";
}
function showElement(obj) { //显示元素
obj.style.display = "inline";
}
var oldPositionComparability = 0;
function flowComparability() { //对比框浮动程序。
var flowComparabilityDiv = document.getElementById("flowComparabilityDiv");
var tmp = document.documentElement.scrollTop + document.documentElement.clientHeight - flowComparabilityDiv.offsetHeight - 200;
if (tmp != oldPositionComparability) {
flowComparabilityDiv.style.top = tmp;
oldPositionComparability = tmp;
}
}
//cookie 操作
function setProductCookie(name, value, option) {
//用于存储赋值给document.cookie的cookie格式字符串
var str = name + "=" + escape(value);
if (option) {
if (option.expire)str += ";expires=" + option.expire; //设置安全性
if (option.domain)str += ";domain=" + option.domain; //设置访问主机
if (option.path)str += ";path=" + option.path; //设置访问路径
}
document.cookie = str;
}
function getProductCookie(name) {
var cookieArray = document.cookie.split(";");
//得到分割的cookie名值对
var cookie = new Object();
for (var i = 0; i < cookieArray.length; i++) {
var arr = cookieArray[i].split("=");
//将名和值分开
var varname = arr[0].replace(/\s/, "");
if (varname == name)return unescape(arr[1]); //如果是指定的cookie，则返回它的值
}
return "";
}
function deleteProductCookie(name) {
var exp = new Date();
exp.setTime(exp.getTime() - 1);
var cval = getProductCookie(name);
document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}