// JavaScript Document
var baseref = "http://www.discovermekong.com/public/";
function MM_now(){ //v1.0 by blackface
	var dayArr = new Array ("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");
	var monthArr = new Array ("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");
	//var monthArr = new Array ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");	
	var today = new Date();
	var result = "";
	// day & date --
	result += dayArr[today.getUTCDay()] + ", ";
	result += today.getUTCDate();
	// surfix --
	var endNum = today.getUTCDate().toString().substr(today.getUTCDate().toString().length - 1, 1);
	if (endNum == "1"){
		result += "st ";
	}else if (endNum == "2"){
		result += "nd ";
	}else if (endNum == "3"){
		result += "rd ";
	}else{
		result += "th ";
	}
	// month -- year
	result += monthArr[today.getUTCMonth()] + " " +today.getFullYear() + ". ";
	// hour --
	var hour = today.getUTCHours();
	result += ((hour > 12) ? (hour - 12): hour) + ":";
	// munite --
	result += ((today.getUTCMinutes()>9)?today.getUTCMinutes():"0"+today.getUTCMinutes()) + ((hour > 12) ? " pm ": " am ");
	result += "(GMT)";
	document.write("<b>" + result + "</b>");
	return true;
}

/*function checkForm(frm, arr_ctrl) {
	var count= arr_ctrl.length ;
	var i=0  ;
	for(i=0; i< count; i++) {
		func= trim( arr_ctrl[i][0] ) ;		
		if( eval( func ) ) { //== 
			alert( arr_ctrl[i][1] ) ;
			if( arr_ctrl[i][2] != "" )
				eval( "frm."  + arr_ctrl[i][2] ).focus() ;
			return false ; //== Error
		}
	}
	return true ; //== OK
}
*/
function isEmail(s)
{
	if (s.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]{2,4}$/) != -1)
		return true ;
	else
		return false ;
}
function trim(str) {
	return str.replace(/^\s+/g, '').replace(/\s+$/g, '');
}

function isNegative(str) {
	if( isNaN(str) || str <= 0 )
		return true ;
	return false ;
}
function isLeapYear( yyyy ) {
	if( ( yyyy%4==0 && yyyy % 100 !=0 ) || yyyy%400==0 )
		return true ;
	return false ;
}

function isBlank(str) {
	if( str == "" ) 
		return true ;
	return false ;
}
function isValidDate(dd, mm, yyyy){ 
	//alert(yyyy);
	if(dd<=0 || dd>31 ||  mm>12 || mm<1)
		return false;
    if (( mm == 4 || mm == 6 || mm == 9 || mm == 11) && dd > 30 ){         
        return false; 
    } else if ( mm == 2 && dd > 29 ) {
        return false; 
    } else if (mm == 2 && ! isLeapYear(yyyy) && dd > 28){ 
        return false; 
    }else if(yyyy<2006)
		return false;
	return true;
}//isValidDate 

/*function createEditor(id,obj_id,obj_type,link_type,value,height){
	if (document.all){
		var idGenerator = new IDGenerator(id);
		if (isNaN(height)) height=200;
		var editor = new Editor(idGenerator,link_type,obj_id,obj_type,value,height);
		editor.Instantiate();
	}else{
		document.write("Sorry! your browser does not support this action. Please use Internet Explorer.")
	}
	return true;
}


function go_subcribe(act,obj){
	if ((obj.value!="")&&(isEmail(obj.value))){
		var doc_url=document.location.href;
		url = "subcribe.php?action="+act+"&email="+obj.value+"&url="+doc_url;
		window.location = baseref+url;
	}else{
		alert("email address is invalid !");
		obj.focus();
	}
}

function checkKey(e){
	if (document.getElementById && parseInt(navigator.appVersion)>=5){
		keyStroke = e.which;
	}else if (document.all){
		keyStroke = window.event.keyCode;
	}
	if (keyStroke == 13){
		go_subcribe('subcribe',document.subcribeform.email)
	}
}

/*
function disableselect(e){
	return false
} 
  
function reEnable(){
	return true
} 
  
//if IE4+
document.onselectstart=new Function ("return false") 
  
//if NS6
if (window.sidebar){
	document.onmousedown=disableselect
	document.onclick=reEnable
}


var omitformtags=["|input|", "|textarea|", "|select|"]

omitformtags=omitformtags.join("|")

function disableselect(e){
if (omitformtags.indexOf("|"+e.target.tagName.toLowerCase()+"|")==-1)
return false
}

function reEnable(){
return true
}

if (typeof document.onselectstart!="undefined")
document.onselectstart=new Function ("return false")
else{
document.onmousedown=disableselect
document.onmouseup=reEnable
}
*/