function displayElement(element){
	document.getElementById(element).style.visibility = 'visible';
}

function changeImageSource(image,path,element){
	displayElement(element);
	var source = document.getElementById(element).src;
	var nsource = path + image;
	document.getElementById(element).src = nsource;
}
//==================================================
var xmlhttp = false;
function AJAXQuery( URL ) {
	
	try {
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); }catch(E){ xmlhttp = false; }
	}
	if ( !xmlhttp && typeof XMLHttpRequest!='undefined' ) { xmlhttp = new XMLHttpRequest(); }
	var now = new Date();
	var HMS = now.getHours()+now.getMinutes()+now.getSeconds();
	HMS = ( URL.indexOf('?') > 0 ) ? HMS = '&' + HMS : HMS = '?' + HMS ;  
	//alert(URL);
	xmlhttp.open("GET", URL + HMS , true);
  	xmlhttp.onreadystatechange	=	AjaxDone ;
	xmlhttp.send(null);
}
function AjaxDone(){
	try{ if(xmlhttp.readyState != 4) return; }catch(E){ return }
	try{ 
		var strResp =  xmlhttp.responseText.toString() ;
		var strData, strCode ;
		xmlhttp = null ;
		if( strResp.indexOf('<h||s>') != -1 ){
			CodeDataAry = strResp.split('<h||s>') ;
			strCode = CodeDataAry[0];
			strData = CodeDataAry[1];
			eval(strCode);
		}else{	eval(strResp); }
	}
	catch(E){ alert(E.message + ' -- ' + strResp ); }
}
//==================================================

function GetRadioVal( Rdo_Name ){
	var obs_Rdo = document.getElementsByName( Rdo_Name );
	var Rdo_val = '' ;
	if( obs_Rdo ){
		for( i=0; i< obs_Rdo.length; i++ ){
			if( obs_Rdo[i].checked == true )
				Rdo_val = obs_Rdo[i].value;
		}
	}
	return Rdo_val;		
}
function ResetRadio( Rdo_Name ){
	var obs_Rdo = document.getElementsByName( Rdo_Name );
	if( obs_Rdo ){
		for( i=0; i< obs_Rdo.length; i++ ){
			obs_Rdo[i].checked = false ;
		}
	}
}

function GetComboTxtVal( Cmbo_Name, TxtVal ){
	var obs_Cmbo = document.getElementsByName( Cmbo_Name )[0];
	if( obs_Cmbo ){
		if( obs_Cmbo.selectedIndex != -1 ){
			if( TxtVal == 'text' )
				return obs_Cmbo.options[obs_Cmbo.selectedIndex].text ;
			else
				return obs_Cmbo.options[obs_Cmbo.selectedIndex].value ;
		}
	}
	return '';		
}

//////////////////////////// Validation /////////////////////////////
// alphanum_ = "[^A-Za-z0-9\-_]"
function RegValid( Reg, Ctrl, MinLen, FldName ){
	if( Ctrl.value.length >= MinLen ){
		if( Reg != '' ){
			var charpos = Ctrl.value.search(Reg); 
			if( charpos >= 0 ){
				var invChr = Ctrl.value.substr(charpos, 1) ;
				alert( 'Invalid value for field "' + FldName + '", \'' + invChr + '\' is not allowed.'  );			
				return false; 
			}
		}
	}else{
		alert( '"' + FldName + '" must be atleaset ' + MinLen + ' characters long!'  );	
		return false; 
	}	
	return true; 
}
function GD( id ){
	return document.getElementById( id );	
}

function Set_Cookie( name, value, expires, path, domain, secure ) {
	// set time, it's in milliseconds
	var today = new Date();
	today.setTime( today.getTime() );
	if ( expires )
	{
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );
	document.cookie = name + "=" +escape( value ) +
		( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) + //expires.toGMTString()
		( ( path ) ? ";path=" + path : "" ) + 
		( ( domain ) ? ";domain=" + domain : "" ) +
		( ( secure ) ? ";secure" : "" );
}

function Get_Cookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) )
	{
		return null;
	}
	if ( start == -1 ) return null;
	var end = document.cookie.indexOf( ";", len );
	if ( end == -1 ) end = document.cookie.length;
	return unescape( document.cookie.substring( len, end ) );
}

function Round(num, dec) {
	var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
	return result;
}