function extractUrl(url)
{
	url = url+"";
    var index1 = url.indexOf("&trurl=");
    var index2 = url.indexOf("&",index1+3);
      if(index1!=-1 && index2 !=-1)
           url = url.substring(index1+7, index2);
    if(index1!=-1 && index2 ==-1)
           url = url.substring(index1+7);
    url = unescape(url);
	return url;
}

function signin(signinURL){
 if(top.location != self.location)
 {
   var url = signinURL + "?Done=" + escape(extractUrl(self.location));
   top.location = url;
  }
  else
  {
  	var url = signinURL + "?Done=" + escape(document.location);
    document.location = url;
  }
}

function showBuy()
{
    var buy = document.getElementById("buyNav");
    var sell = document.getElementById("sellNav");
    var resource = document.getElementById("resourceNav");
	var buycurr = document.getElementById("buyNavCurr");
    var sellcurr = document.getElementById("sellNavCurr");
    var resourcecurr = document.getElementById("resourceNavCurr");
    buy.style.display = "none";
	buycurr.style.display = "";
	sell.style.display = "";
	sellcurr.style.display = "none";
	resource.style.display = "";
	resourcecurr.style.display = "none";
}
function showSell()
{
    var buy = document.getElementById("buyNav");
    var sell = document.getElementById("sellNav");
    var resource = document.getElementById("resourceNav");
	var buycurr = document.getElementById("buyNavCurr");
    var sellcurr = document.getElementById("sellNavCurr");
    var resourcecurr = document.getElementById("resourceNavCurr");
    buy.style.display = "";
	buycurr.style.display = "none";
	sell.style.display = "none";
	sellcurr.style.display = "";
	resource.style.display = "";
	resourcecurr.style.display = "none";
}
function showResource()
{
	 var buy = document.getElementById("buyNav");
    var sell = document.getElementById("sellNav");
    var resource = document.getElementById("resourceNav");
	var buycurr = document.getElementById("buyNavCurr");
    var sellcurr = document.getElementById("sellNavCurr");
    var resourcecurr = document.getElementById("resourceNavCurr");
    buy.style.display = "";
	buycurr.style.display = "none";
	sell.style.display = "";
	sellcurr.style.display = "none";
	resource.style.display = "none";
	resourcecurr.style.display = "";
}
var texts= new Array("Search Selling Leads Now","Search Products Now","Search Suppliers Now","Search Buying Leads Now","Search Trade Shows Now");
function changeSearchText(sType)
{
	var inputText = document.getElementById("SearchTextIdx")
	if(inputText == null)
		return;
	switch(sType){
				case("sell"):{
					inputText.value = texts[0];
					break;
					}
				case("buy"):{
					inputText.value = texts[3];
					break;
					}
				case("product"):{
					inputText.value = texts[1];
					break;
					}
				case("company"):{
					inputText.value = texts[2];
					break;
					}
				case("ts"):{
					inputText.value = texts[4];
					break;
					}
				}
}
function checkValue()
{
	var inputText = document.getElementById("SearchTextIdx");
	for(var i=0;i<texts.length;i++)
	if(inputText.value == texts[i])
		inputText.value = "";
}

function searchSubmit(action,importerServer,aisnServer){
	if(action == 'sell'){ 
		document.headSearchForm.action = importerServer+"/buyeroffers";
	} else if(action = 'buy'){
		document.headSearchForm.action = aisnServer+"/trade/search";
	} else{
		alert('invalid action type - ' + action);
	  return false;
	}

	if(document.headSearchForm.SearchText.value == 'Search Alibaba.com' || document.headSearchForm.SearchText.value == 'Search Alibaba.com' || trim(document.headSearchForm.SearchText.value) == ""){
	  alert('Please input a search term.');
	  return false;
	}
	  
	if(check(document.headSearchForm.SearchText.value)){
		alert('Sorry, the information you filled in is not in English. Please input the information in English instead.');
		return false;
	}

	return true;
}
	     
function   check(str){   
	for(i=0;i<str.length;i++){
		if(str.charCodeAt(i)>256)
		return true;   
	}
  return false;
}

function showInfo()
{
	logInfo("12631_yatl7");
}


//for buying leads, keybord turn page
function keyPagenation(ev){
	var target = YUE.getTarget(ev).tagName;
	if (target != 'INPUT' && target != 'SELECT' && target != 'TEXTAREA') {
		if (ev.keyCode == 37 && get('preProductAId') != null) {
			window.location.href=get('preProductAId').href;
		}
		if (ev.keyCode == 39 && get('nextProductAId') != null) {
			window.location.href=get('nextProductAId').href;
		}
	}
}