function showLoginBar(uType){
	if(uType=="2"){
		login2.style.display="";
		login3.style.display="none";
		login4.style.display="none";
	}
	else if(uType=="3"){
		login2.style.display="none";
		login3.style.display="";
		login4.style.display="none";
	}
	else if(uType=="4"){
		login2.style.display="none";
		login3.style.display="none";
		login4.style.display="";
	}
}

	function checkCard(obj){
	     var dv=obj.value;
	     var cd=dv.length*1;
	     if(cd!=19){
	         alert('\u96C5\u9177\u96C5\u8054\u5361\u5361\u53F7\u90FD\u662F19\u4F4D\uFF01\u60A8\u8F93\u5165\u7684\u4E0D\u6B63\u786E\uFF01!');
	         obj.value="";
	     }
	}

function formChecked(){
	var userProfileId=trimPrefix(document.loginform.userIdentify.value," ");
	if(userProfileId.length==0){
		alert("\u8bf7\u4f60\u8f93\u5165\u7528\u6237\u540d\u548c\u5bc6\u7801!");
		return false;
	}
	var validatecode=trimPrefix(document.loginform.validateCode.value," ");
	if(validatecode.length==0){
		alert("\u8bf7\u8f93\u5165\u9a8c\u8bc1\u7801!");
		return false;
	}	
	return true;
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
	 window.open(theURL,winName,features);
}	
function regOnline(){
	var userType=document.loginform.userType.value;
	if(userType=="2"){
		window.location="./purchase.do?toreg=true";
	}
	else if(userType=="3"){
		window.location="http://shop.yacol.com/doRegProvider.do?s=0&u=1";
	}
	else if(userType=="4"){
		window.location="#";
	}
}
function setuserType(uType){
	document.loginform.userType.value=uType;
	showLoginBar(uType);
}
function ifsubmit1(){
	if(window.event.keyCode==13){
		document.loginform.submit();
	}	
}
function showCharNum(){
	tt.innerHTML = document.loginform.userIdentify.value.length;
	var uType=document.loginform.userType.value;
	showLoginBar(uType);		
}
function submitLoginForm(){
	if(formChecked()){
		document.loginform.submit();
	}
}


function trimPrefix(str,prefix){
	var tmpstr = str;
	var len = prefix.length;		
	while(tmpstr.substring(0,len) == prefix)
	{
		tmpstr = tmpstr.substr(len);
	}
	return tmpstr;
}