var i = 0;
var view_items_separator = "##$$!!##";
//检测浏览器
function chk_broswer(){
	 if (navigator.appName.indexOf("Microsoft")!=-1) {
		return(true);
	 }else{
		return(false);
	 }
}

//检测中文
function checkAscii(name) {
	if(name.length == 0){
		return true;
	}
	for(i = 0; i < name.length; i++) { 
		if(name.charCodeAt(i) < 128){
			return true;
		}
	}
	return false;
}

//用户登陆检测
function loginchk(){
	var uname = jQuery("#UserName");
	var upass = jQuery("#PassWord");
	var vcode = jQuery("#CheckCode");
	var errbox = jQuery("#ErrorBox");
	if(uname.val() == ''){
		uname.addClass('input_red');
		uname.focus();
		return false;
	}
	if(upass.val() == ''){
		upass.addClass('input_red');
		upass.focus();
		return false;
	}
	if(vcode.val() == ''){
		vcode.addClass('input_red');
		vcode.focus();
		return false;
	}
	return true;
}

// 记录产品点击历史
function aHistory(pid,purl,pimage,ptitle){
	if(hasItem(pid)){
		return;
	}
	var str = pid +"*"+ purl +"*"+ pimage +"*"+ ptitle;
	var value = GetCookie("product_history");
	var kvalue = "";
	if(value == null || value == "null" ){
		kvalue = str;
	}else{
		var count = 0;
		var position = 0;
		var len = 0;
		var alllen = 0;
		kvalue = value;
		if(value.indexOf(view_items_separator) == -1){
			kvalue = value;
		}else{
			while(value.indexOf(view_items_separator) != -1){
				position = value.indexOf(view_items_separator);
				alllen = alllen + position + view_items_separator.length;
				len = value.length;
				value = value.substring(position + view_items_separator.length,len);
				count++;
				if(count >= 5)break;
			}
			if(count >= 5){
				kvalue = kvalue.substring(0,alllen - view_items_separator.length);
			}
		}
		kvalue = str + view_items_separator + kvalue;
	}
	SetCookie("product_history",kvalue, 365 * 24 * 60 * 60 * 1000, "/");
}

//记录公司点击记录
function cHistory(cid,curl,ctitle){
	if(hasItem(cid)){
		return;
	}
	var str = cid +"*"+ curl +"*"+ ctitle;
	var value = GetCookie("company_history");
	var kvalue = "";
	if(value == null || value == "null" ){
		kvalue = str;
	}else{
		var count = 0;
		var position = 0;
		var len = 0;
		var alllen = 0;
		kvalue = value;
		if(value.indexOf(view_items_separator) == -1){
			kvalue = value;
		}else{
			while(value.indexOf(view_items_separator) != -1){
				position = value.indexOf(view_items_separator);
				alllen = alllen + position + view_items_separator.length;
				len = value.length;
				value = value.substring(position + view_items_separator.length,len);
				count++;
				if(count >= 5)break;
			}
			if(count >= 5){
				kvalue = kvalue.substring(0,alllen - view_items_separator.length);
			}
		}
		kvalue = str + view_items_separator + kvalue;
	}
	SetCookie("company_history",kvalue, 365 * 24 * 60 * 60 * 1000, "/");
}

function hasItem(arg){
	var value = GetCookie("product_history");
	if(value == null || value == "null" || value.indexOf(arg) == -1 ){
		return false;
	}else{
		return true;
	}
}

// 设定Cookie值
function SetCookie(name, value){
	var expdate = new Date();
	var argv = SetCookie.arguments;
	var argc = SetCookie.arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : null;
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	if(expires!=null) expdate.setTime(expdate.getTime() + ( expires * 1000 ));
	document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))
		+((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "; domain=.vcn.com.cn" : ("; domain=" + domain))
		+((secure == true) ? "; secure" : "");
}

//获得Cookie的原始值
function GetCookie(name,flag){
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen){
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg)
		return GetCookieVal (j, flag);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

//获得Cookie解码后的值
function GetCookieVal(offset, flag){
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
		endstr = document.cookie.length;
	if(flag == 1){
		return (document.cookie.substring(offset, endstr));
	}else{
		return unescape(document.cookie.substring(offset, endstr));
	}
}

//删除Cookie
function DelCookie(name){
	var exp = new Date();
	exp.setTime (exp.getTime() - 1);
	var cval = GetCookie(name);
	document.cookie = name + "=0; expires="+ exp.toGMTString();
}

//主页搜索切换
function search_tab(btnid){
	if(btnid == 'btn1'){
		jQuery("#btn1_1").show();
		jQuery("#btn1_0").hide();
		
		jQuery("#btn2_1").hide();
		jQuery("#btn2_0").show();
		
		jQuery("#btn3_1").hide();
		jQuery("#btn3_0").show();
		
		jQuery("#btn4_1").hide();
		jQuery("#btn4_0").show();
		
		jQuery("#searchtype").val('Product');
		
		jQuery("#frmSearch").attr({'action':'/product/result.shtml'});
	}else if(btnid == 'btn2'){
		jQuery("#btn1_1").hide();
		jQuery("#btn1_0").show();
		
		jQuery("#btn2_1").show();
		jQuery("#btn2_0").hide();
		
		jQuery("#btn3_1").hide();
		jQuery("#btn3_0").show();
		
		jQuery("#btn4_1").hide();
		jQuery("#btn4_0").show();
		
		jQuery("#searchtype").val('Product');
		
		jQuery("#frmSearch").attr({'action':'/product/result.shtml'});
	}else if(btnid == 'btn3'){
		jQuery("#btn1_1").hide();
		jQuery("#btn1_0").show();
		
		jQuery("#btn2_1").hide();
		jQuery("#btn2_0").show();
		
		jQuery("#btn3_1").show();
		jQuery("#btn3_0").hide();
		
		jQuery("#btn4_1").hide();
		jQuery("#btn4_0").show();
		
		jQuery("#searchtype").val('Company');
		
		jQuery("#frmSearch").attr({'action':'/company/result.shtml'});
	}else if(btnid == 'btn4'){
		jQuery("#btn1_1").hide();
		jQuery("#btn1_0").show();
		
		jQuery("#btn2_1").hide();
		jQuery("#btn2_0").show();
		
		jQuery("#btn3_1").hide();
		jQuery("#btn3_0").show();
		
		jQuery("#btn4_1").show();
		jQuery("#btn4_0").hide();
		
		jQuery("#searchtype").val('Article');
		
		jQuery("#frmSearch").attr({'action':'/news/result.shtml'});
	}
}

//简易搜索切换
function sample_search_tab(bid){
	if(bid == 1){
		jQuery("#search_btn_1").addClass('navbg');
		jQuery("#search_btn_2").removeClass('navbg');
		jQuery("#search_btn_2").addClass('navbg_off');
		jQuery("#search_btn_3").removeClass('navbg');
		
		jQuery("#searchtype").val('Product');
		
		jQuery("#frmSearch").attr({'action':'/product/result.shtml'});
	}else if(bid == 2){
		jQuery("#search_btn_1").removeClass('navbg');
		jQuery("#search_btn_2").addClass('navbg');
		jQuery("#search_btn_3").removeClass('navbg');
		
		jQuery("#searchtype").val('Company');
		
		jQuery("#frmSearch").attr({'action':'/company/result.shtml'});
	}else if(bid == 3){
		jQuery("#search_btn_1").addClass('navbg_off');
		jQuery("#search_btn_1").removeClass('navbg');
		jQuery("#search_btn_2").removeClass('navbg');
		jQuery("#search_btn_3").addClass('navbg');
		
		jQuery("#searchtype").val('Article');
		
		jQuery("#frmSearch").attr({'action':'/news/result.shtml'});
	}
}