var ie45,ns6,ns4,dom;
if (navigator.appName=="Microsoft Internet Explorer") ie45=parseInt(navigator.appVersion)>=4;
else if (navigator.appName=="Netscape"){  ns6=parseInt(navigator.appVersion)>=5;  ns4=parseInt(navigator.appVersion)<5;}
dom=ie45 || ns6;
var http=createRequestObject();
var objectId = '';
var anum=/(^\d+$)/

function createRequestObject(htmlObjectId){
    var obj;
    var browser = navigator.appName;
    
    if(browser == "Microsoft Internet Explorer"){
        obj = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else{
        obj = new XMLHttpRequest();
    }
    return obj;    
}

function sendReq(serverFileName, variableNames, variableValues,objId) {
    var paramString = '';
    
    objectId = objId;
    variableNames = variableNames.split(',');
    variableValues = variableValues.split(',');
    
    for(i=0; i<variableNames.length; i++) {
        paramString += variableNames[i]+'='+variableValues[i]+'&';
    }
    paramString = paramString.substring(0, (paramString.length-1));
            
    if (paramString.length == 0) {
        http.open('get', serverFileName);
    }
    else {
        http.open('get', serverFileName+'?'+paramString);
    }
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function handleResponse() {
    
    if (http.readyState == 4) {
        responseText = http.responseText;
        try { 
			getobj(objectId).innerHTML = responseText;
		} catch (e) {}
    } else {
        getobj(objectId).innerHTML = "Loading ...";
    }
        
}

function change_icon(imgDocID,url) {
document.images[imgDocID].src = url;
}  

function showhide(id) {
el = document.all ? document.all[id] :   dom ? document.getElementById(id) :   document.layers[id];
els = dom ? el.style : el;
  if (dom){
    if (els.display == "none") {
        els.display = "";
      } else {
        els.display = "none";
      }
    }
  else if (ns4){
    if (els.display == "show") {
        els.display = "hide";
      } else { 
      els.display = "show";
         }
  }
}

function getobj(id) {
el = document.all ? document.all[id] :   dom ? document.getElementById(id) :   document.layers[id];
return el;
}

function getobjn(id) {
el = document.all ? document.all[id] :   dom ? document.getElementByName(id) :   document.layers[id];
return el;
}

function showobj(id) {
obj=getobj(id);
els = dom ? obj.style : obj;
 	if (dom){
	    els.display = "";
    } else if (ns4){
        els.display = "show";
  	}
}

function hideobj(id) {
obj=getobj(id);
els = dom ? obj.style : obj;
 	if (dom){
	    els.display = "none";
    } else if (ns4){
        els.display = "hide";
  	}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function openPopUp(url, windowName, w, h, scrollbar) {
           var winl = (screen.width - w) / 2;
           var wint = (screen.height - h) / 2;
           winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scrollbar ;
		   win = window.open(url, windowName, winprops);
           if (parseInt(navigator.appVersion) >= 4) { 
              	win.window.focus(); 
           } 
}

function checkinput(array_check) {
	for (var i=0; i < array_check.length; i++) {
		objvar = 'result_'+array_check[i];
		if (eval(objvar)!=1) {
			getobj('notice').innerHTML="Vui l&#242;ng ki&#7875;m tra l&#7841;i c&#225;c th&#244;ng tin b&#7855;t bu&#7897;c (*)";
			return false;
		}
	}
	return true;
}

function checkcurrentinput(array_check) {
	for (var i=0; i < array_check.length; i++) {
		checkstr(array_check[i],0);
	}
}

function checkemail(id) {
	var imgobj=getobj('img_'+id);
	var resultobj='result_'+id;
	email=getobj(id).value;
	err=0;
		if (email == ""){
			err=1
		}
		if (email.indexOf('@') <= 0 || email.indexOf('@') == email.length -1){
			err = 1;
		} else {
			var domain=email.substring(email.indexOf('@'),email.length);
			if (domain.indexOf('.') <= 0) {
				err = 1;
			}
		}
		if (email.indexOf(' ') > 0) err=1;
		if (email.indexOf('-') > 0) err=1;
		
		if (err) { 
			imgobj.innerHTML="<img src='images/check_no.gif' border=0>";
			eval(resultobj + '=0;');
		} else {
			imgobj.innerHTML="<img src='images/check_ok.gif' border=0>";
			eval(resultobj + '=1;');
		}
}
function checkphone(id,n) {
	var imgobj=getobj('img_'+id);
	var resultobj='result_'+id;
	str=getobj(id).value;

	if (str.length<n+1) {
		imgobj.innerHTML="<img src='images/check_no.gif' border=0>";
		eval(resultobj + '=0;');
	} else if (!anum.test(str)) {
			imgobj.innerHTML="<img src='images/check_no.gif' border=0>";
			eval(resultobj + '=0;');
		} else {
			imgobj.innerHTML="<img src='images/check_ok.gif' border=0>";
			eval(resultobj + '=1;');
		}
}
function checkstr(id,n) {
	var imgobj=getobj('img_'+id);
	var resultobj='result_'+id;
	str=getobj(id).value;

	if (str.length<n+1) {
		imgobj.innerHTML="<img src='images/check_no.gif' border=0>";
		eval(resultobj + '=0;');
	} else {
		imgobj.innerHTML="<img src='images/check_ok.gif' border=0>";
		eval(resultobj + '=1;');
		}
}

function gotopage(query){	
	var url = "?cmd=act:"+query;
	document.location = url;
}

function setvalue(id,valueadd) {
	if (valueadd=="on") {
		getobj(id).checked = "checked";
	} else if (valueadd=="Yes") {
		getobj(id)[0].checked="checked";
	} else if (valueadd=="No") {
		getobj(id)[1].checked="checked";
	} else getobj(id).value = valueadd;
}

function loadimages(url) {
	imageover=new Image;
	imageover.src=url;
}

function viewrate() {
	openPopUp("ViewRate.php", "CallRate", 350, 600, "yes");
}

function checkccinfo(f) {
	alert(ccnew[CCtype]);
	
}

function chkmoney(m) {
   	return /^(\-+)?\d+(\.\d+)?$/.test(m);
}

function getCheckedValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}

function do_cal_rate() {
	var country=getobj('country').value;
	var money=getobj('money').value;
	var dial188=getCheckedValue(document.forms['cal_form'].elements['dial188']);
	if (country==0) {
		alert('Vui long chon Quoc Gia');
		getobj('country').focus();
		return false;
	}
	if (!chkmoney(money)) {
		alert('So tien khong hop le !');
		getobj('money').focus();
		return false;
	}
	if (money==0) {
		alert('Vui long nhap so tien !');
		getobj('money').focus();
		return false;
	}
	sendReq('calrate.php', 'country,money,dial188', country+','+money+','+dial188 ,'cal_result');
	return false;
}