function GetWindowSize()
{
    var width = 0, height = 0;
    
    if( typeof( window.innerWidth ) == 'number' )
    {
        width = window.innerWidth;
        height = window.innerHeight;
    }
    else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) )
    {
        width = document.documentElement.clientWidth;
        height = document.documentElement.clientHeight;
    }
    else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) )
    {
        width = document.body.clientWidth;
        height = document.body.clientHeight;
    }
    
    return( [width,height] );
}

function GetWindowScroll()
{
    var scrOfX = 0, scrOfY = 0;
    if( typeof( window.pageYOffset ) == 'number' )
    {
        scrOfY = window.pageYOffset;
        scrOfX = window.pageXOffset;
    }
    else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) )
    {
        scrOfY = document.body.scrollTop;
        scrOfX = document.body.scrollLeft;
    }
    else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) )
    {
        scrOfY = document.documentElement.scrollTop;
        scrOfX = document.documentElement.scrollLeft;
    }
    
    return [ scrOfX, scrOfY ];
}

function GetObjectVisibleSize( id )
{
    var w = 0, h = 0;
    if( typeof(id) == 'object' ) obj = id;
    else obj = document.getElementById(id);
    if( obj!=null )
    {
        w = ( obj.offsetWidth>0 )? obj.offsetWidth : obj.clientWidth;
        h = ( obj.offsetHeight>0 )? obj.offsetHeight : obj.clientHeight;
    }
    
    return( [w,h] );
}

function GetObjectSize( id )
{
    var w = 0, h = 0;
    if( typeof(id) == 'object' ) obj = id;
    else obj = document.getElementById(id);
    if( obj!=null )
    {
        w = obj.scrollWidth;
        h = obj.scrollHeight;
    }
    
    return( [w,h] );
}

function GetBody()
{
    var body = document.getElementsByTagName('body')[0];
    
    return( body );
}

function GetFirstNode( node )
{
    var retval = null;
    
    for( var i=0; i<node.childNodes.length; i++ )
    {
        if( node.childNodes[i].nodeType == 1 )
        {
            retval = node.childNodes[i];
            break;
        }
    }
    
    return( retval );
}

function add_to_url(url,add)
{
    url2go = ""+ url;
    url2go = url2go.replace(/#/,"");
    params = add.match(/([^=]+)=(.*)/);
    if( params[1].length>0 )
    {
        if( url2go.indexOf(params[1]) != -1 )
        {
            //re = eval("/&*"+params[1]+"=[^&]*/");
            re = eval("/[&?]+"+params[1]+"=[^&]*/");
            url2go = url2go.replace(re,"");
        }
    }
    
    if( url2go.indexOf("?") == -1 )
    {
        url2go += "?" + add;
    }
    else
    {
        url2go += "&" + add;
    }
    
    return(url2go);
}

function popup_window( width, height, url )
{
    p = window.open(url,'window'+width,'scrollbars=yes,status=no,width='+ width +',height='+ height +',resizable=yes')
    p.document.body.style.margin = 0;
    return( false );
}

function del_item( url, msg )
{
    if( msg == '' ) msg = "Do you want to delete this item?";
    if( confirm(msg) )
    {
        document.location = url;
    }
}

function ScrollToObject( name )
{
    var obj = document.getElementById(name);
    if( obj )
    {
        var x = obj.x ? obj.x : obj.offsetLeft;
        var y = obj.y ? obj.y : obj.offsetTop;
        window.scrollTo( x, y );
    }
}

function element_is_null( obj_id )
{
    retval = false;
    obj = document.getElementById( obj_id );
    if( obj!=null )
    {
        if( obj.value== "" ) retval = true;
    }
    
    return(retval);
}

function element_is_email( obj_id )
{
    retval = false;
    obj = document.getElementById( obj_id );
    if( obj!=null )
    {
        if( obj.value.indexOf("@")!=-1 && obj.value.indexOf(".")!=-1 ) retval = true;
    }
    
    return(retval);
}

function element_is_number( obj_id )
{
    retval = false;
    obj = document.getElementById( obj_id );
    if( obj!=null )
    {
        obj.value = obj.value.replace( / /g, "" );
        re = /[\d\.\,-]/gi;
        if( obj.value.replace( re,"")=="" ) retval = true;
    }
    
    return(retval);
}

function element_is_selected( obj_id )
{
    retval = false;
    obj = document.getElementById( obj_id );
    if( obj!=null )
    {
        if( obj.options[obj.selectedIndex].value > 0 ) retval = true;
    }
    
    return(retval);
}

/* 
    form - form object
    elements - array of elements ['element id','{null|email|number}','alert message']
*/
function checkform( form, elements )
{
    msg = "";
    for( i in elements )
    {
        switch( elements[i][1] )
        {
            case 'email':
                if( !element_is_email( elements[i][0] ) ) msg += (elements[i][2]!="")? elements[i][2] +"\n" : "Element ["+ elements[i][0] +"] is not an email!\n";
                break;
            case 'number':
                if( !element_is_number( elements[i][0] ) ) msg += (elements[i][2]!="")? elements[i][2] +"\n" : "Element ["+ elements[i][0] +"] is not a number!\n";;
                break;
            case 'select':
                if( !element_is_selected( elements[i][0] ) ) msg += (elements[i][2]!="")? elements[i][2] +"\n" : "Element ["+ elements[i][0] +"] is not selected!\n";;
                break;
            case 'null':
            default:
                if( element_is_null( elements[i][0] ) ) msg += (elements[i][2]!="")? elements[i][2] +"\n" : "Element ["+ elements[i][0] +"] is null!\n";;
                break;
        }
    }
    if( msg!="" )
    {
        alert( msg ); return( false );
    }
    else return( true );
}

function select_select( s, value )
{
    var i;
    for( i=0; i<s.options.length; i++ )
    {
        if( s.options[i].value == value )
        {
            s.selectedIndex = i;
            break;
        }
    }
}

function createCookie( name, value, days )
{
    if( days )
    {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name)
{
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for( var i=0; i<ca.length; i++ )
    {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}

function addCommas(nStr)
{
	nStr += '';
	x = nStr.split('.');
	x1 = x[0];
	x2 = x.length > 1 ? '.' + x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) {
		x1 = x1.replace(rgx, '$1' + ',' + '$2');
	}
	return x1 + x2;
}

function HideAllSelectboxes( form )
{
    if( form )
    {
        for( i=0; i<form.elements.length; i++ )
        {
            if( form.elements[i].type.indexOf("select") != -1 )
            {
                form.elements[i].style.visibility = 'hidden';
            }
        }
    }
}

function ShowAllSelectboxes( form )
{
    if( form )
    {
        for( i=0; i<form.elements.length; i++ )
        {
            if( form.elements[i].type.indexOf("select") != -1 )
            {  
                form.elements[i].style.visibility = 'visible';
            }
        }
    }
}

function ShowLocalNetworkMessage()
{
    var w = 500, h = 260;
    obj = document.getElementById('local_network_message');
    bg = document.getElementById('local_network_message_bg');
    if( obj != null )
    {
        ww = GetWindowSize()[0];
        wh = GetWindowSize()[1];
        obj.style.left = (ww - w) / 2;
        obj.style.top = GetWindowScroll()[1] + (wh - h) / 2;
        obj.style.width = w + 'px';
        obj.style.height = h + 'px';
        
        bg.style.top = '0px'; bg.style.left = '0px';
        //bg.style.width = GetObjectSize(document.body)[0];
        //bg.style.height = GetObjectSize(document.body)[1];
        bw = GetObjectSize(document.body)[0];
        bh = GetObjectSize(document.body)[1];
        bg.style.width = (bw>ww)? bw:ww;
        bg.style.height = (bh>wh)? bh:wh;
        
        HideAllSelectboxes( $('order_params') );
    }
}

function HideLocalNetworkMessage()
{
    var obj, bg, i;
    
    obj = document.getElementById('local_network_message');
    bg = document.getElementById('local_network_message_bg');
    if( obj != null )
    {
        obj.style.left = '-10px'; obj.style.top = '-10px'; obj.style.width = '1px'; obj.style.height = '1px';
        bg.style.top = '-1px'; bg.style.left = '-1px'; bg.style.width = '1px'; bg.style.height = '1px';
    }
    ShowAllSelectboxes( $('order_params') );
}

function OnLoad()
{
}

function PreviewImage( event, image, width, height, close_logo, close_text )
{
    while( $('preview_image') ) $('preview_image').remove();
    var i = new Element( 'div', {'id':"preview_image",'title':close_logo,'class':"preview_image"}).update( '<img src="'+ image +'" width="'+ width +'" height="'+ height +'" border="0"/><div style="position:absolute;left:4;top:2;color:#eeeeee">'+ close_text +'</div>' );
    i.observe( 'click', function()
    {
        while($('preview_image')) $('preview_image').remove()
        if( BrowserDetect.browser == 'Explorer' && BrowserDetect.version>=5.5 && BrowserDetect.version<7 )
        {
            var sb = $A(document.getElementsByTagName('select'));
            sb.each(Element.show);
        }
    } );
    Element.insert( $('first_table'), i );
    
    if( BrowserDetect.browser == 'Explorer' && BrowserDetect.version>=5.5 && BrowserDetect.version<7 )
    {
        var sb = $A(document.getElementsByTagName('select'));
        sb.each(Element.hide);
    }
    
    var x, y;
    width = Number( width ); height = Number( height );
    x = ( (width+10) <= event.clientX )? event.clientX - (width+10) : 0;
    y = ( (height)/2 <= event.clientY )? GetWindowScroll()[1] + event.clientY - (height/2) : GetWindowScroll()[1];
    i.setStyle( "top:"+ y +";left:"+ x +";" );
}
        
function sleep( msec )
{
    var start = Number( Date.parse( new Date ) );
    var cur;
    while( true )
    {
        cur = Number( Date.parse( new Date ) );
        if( cur > (start+msec) ) break;
    }
}