// JavaScript Document
/*-----------------------------------\
|Welcome to VietStyle Co.,Ltd        |
|Website:http://thegioiwebsite.net   |
|Email:info@thegioiwebsite.net       |
|Tel:04 273 0711                     |
|Fax:04 273 0711                     |
------------------------------------*/
//Ham opup 1
//cach dung: <a href="javascript:displayInfo('http://abc.com.vn',500,500)">Link</a>
function displayInfo(url,w,h)
{
 settings ='height='+h+',width='+w+',scrollbars='+scroll+',resizable';
 window.open(url,'',settings);
}
//Ham popup 2
//Cach dung:<a href="http://abc.com.vn" onclick="NewWindow(this.href,'name','400','400','yes');return false" >Link</a>
function NewWindow(mypage,myname,w,h,scroll)
{
	var win = null;
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings =
	'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
	win = window.open(mypage,myname,settings)
}

/*function kiem tra email co hop le khong*/
function isEmail( text )
{
	var pattern = "^[\\w-_\.]*[\\w-_\.]\@[\\w]\.+[\\w]+[\\w]$";
	var regex = new RegExp( pattern );
	return regex.test( text );
}
/*---------------------------------------------*/
function SearchOnFocus(field)
{
	if(field.value=='Search')
	{
		field.value = '';
	}
}

function SearchOnBlur(field)
{
	if(field.value=='')
	{
		field.value='Search';
	}
}
/*---------------------------------*/
/*Gioi han textarea number:<textarea maxlength="40" onkeyup="return ismaxlength(this)"></textarea> chi go duoc 40 ky tu */
function ismaxlen(obj){
  var maxlen=obj.getAttribute? parseInt(obj.getAttribute("maxlength")) : ""
if (obj.getAttribute && obj.value.length>maxlen)
obj.value=obj.value.substring(0,maxlen)
}

function checkykien()
{
	if(document.fykien.fullname.value=="")
	{
		alert("Vui lòng nhập họ tên");
		document.fykien.fullname.style.backgroud='#FFFFCC';
		document.fykien.fullname.focus(true);
		return false;
	}
	if(isEmail(document.fykien.email.value)==false)
	{
		alert("Email không hợp lệ !");
		document.fykien.email.style.background='#FFFFCC';
		document.fykien.email.focus(true);
		return false;
	}
	if(document.fykien.content.value=="")
	{
		alert("Vui lòng nhập nội dung ý kiến");
		document.fykien.content.style.backgroud='#FFFFCC';
		document.fykien.content.focus(true);
		return false;
	}
	return true;
}