var usrAgent    = navigator.userAgent.toUpperCase( ) ;

var WIN	= ( usrAgent.indexOf("WIN") != -1 ) ? true : false ;
var MAC	= ( usrAgent.indexOf("MAC") != -1 ) ? true : false ;

var NN4	= ( document.layers ? true : false ) ;
var NN6	= ( document.getElementById && !document.all ? true : false ) ;
var IE4	= ( document.all && !document.getElementById ? true : false ) ;
var IE5	= ( document.all && document.getElementById ? true : false ) ;



//	JS
function setJsLink( which, URL )
{
	eval( which ).location = URL ;
}

//	HTML
function setHyperLink( linkName, which, URL )
{
	document.links[ linkName ].target = which ;
	document.links[ linkName ].href = URL ;
}



function getDivImage( layerObj,imgName )
{
	if ( NN4 )
	{
		return layerObj.document.images[ imgName ] ;
	}
	else
	{
		return document.images[ imgName ] ;
	}
}



function refLayer( layerName, d )
{
	var i,x;
	
	if( !d )
	{
		d = document ;
	}

	if ( IE5 || NN6 )
	{
		x = d.getElementById( layerName ) ;
	}
	else if ( IE4 )
	{
		x = d.all[ layerName ] ;
	}
	else if ( NN4 )
	{
		x = d[ layerName ] ;

		for( i=0; !x && i<d.layers.length; i++ )
		{
			x = refLayer( layerName, d.layers[i].document ) ;
		}
	}

	return x;
}



function initLayer( layerObj )
{
	if ( NN6 )
	{
		layerObj.style.width = layerObj.offsetWidth ;
		layerObj.style.height = layerObj.offsetHeight ;
	}
	else if( IE4 || IE5 )
	{
		layerObj.style.pixelLeft   = layerObj.offsetLeft ;
		layerObj.style.pixelTop    = layerObj.offsetTop ;
		layerObj.style.pixelWidth  = layerObj.offsetWidth ;
		layerObj.style.pixelHeight = layerObj.offsetHeight ;
	}
}



function setZindex( layerObj, zOrder )
{
	if ( NN4 )
	{
		layerObj.zIndex = zOrder ;
	}
	else
	{
		layerObj.style.zIndex = zOrder ;
	}
}



function getZindex( layerObj )
{
	if ( NN4 )
	{
		return layerObj.zIndex;
	}
	else
	{
		return layerObj.style.zIndex ;
	}
}



function getLayerVisibility( layerObj )
{
	if ( NN4 )
	{
		return ( layerObj.visibility == "show" ) ;
	}
	else
	{
		return ( layerObj.style.visibility == "visible" ) ;
	}
}

function hideLayer( layerObj )
{
	if ( NN4 )
	{
		layerObj.visibility = "hide" ;
	}
	else
	{
		layerObj.style.visibility = "hidden" ;
	}
}

function showLayer( layerObj )
{
	if ( NN4 )
	{
		layerObj.visibility = "show" ;
	}
	else
	{
		layerObj.style.visibility = "visible" ;
	}
}



function shiftLayerTo( layerObj, x, y )
{
	if ( NN4 )
	{
		layerObj.moveTo( x, y ) ;
	}
	else if ( NN6 )
	{
		layerObj.style.left = x + 'px' ;
		layerObj.style.top  = y + 'px' ;
	}
	else
	{
		layerObj.style.pixelLeft = x ;
		layerObj.style.pixelTop  = y ;
	}
}

function shiftLayerBy( layerObj, x, y )
{
	if ( NN4 )
	{
		layerObj.moveBy( x, y ) ;
	}
	else if ( NN6 )
	{
		layerObj.style.left = ( getLayerPosition( layerObj, 'left') + x ) + 'px' ;
		layerObj.style.top  = ( getLayerPosition( layerObj, 'top') + y ) + 'px' ;
	}
	else if ( IE4 || (MAC && IE5) )
	{
		layerObj.style.pixelLeft += x ;
		layerObj.style.pixelTop  += y ;
	}
	else
	{
		layerObj.style.pixelLeft = layerObj.offsetLeft + x ;
		layerObj.style.pixelTop  = layerObj.offsetTop  + y ;
	}
}



function resizeLayerTo( layerObj, width, height )
{
	if ( NN4 )
	{
		layerObj.resizeTo( width, height ) ;
	}
	else if ( NN6 )
	{
		layerObj.style.width = width ;
		layerObj.style.height = height ;
	}
	else
	{
		layerObj.style.pixelWidth  = width ;
		layerObj.style.pixelHeight = height ;
	}
}



function getLayerSize( layerObj, value )
{
	if( value == "width" )
	{
		if ( NN4 )
		{
			return layerObj.document.width ;
		}
		else if ( NN6 )
		{
			return parseInt( layerObj.style.width ) ;
		}
		else if ( IE4 )
		{
			return layerObj.style.pixelWidth ;
		}
		else
		{
			return layerObj.offsetWidth ;
		}
	}
	if( value == "height" )
	{
		if ( NN4 )
		{
			return layerObj.document.height ;
		}
		else if ( NN6 )
		{
			return parseInt( layerObj.style.height ) ;
		}
		else if ( IE4 )
		{
			return layerObj.style.pixelHeight ;
		}
		else
		{
			return layerObj.offsetHeight ;
		}
	}
}



function getLayerPosition( layerObj, value )
{
	if( value == "top" )
	{
		if ( NN4 )
		{
			return layerObj.top ;
		}
		else if ( NN6 )
		{
			return parseInt( layerObj.style.top ) ;
		}
		else if ( IE4 )
		{
			return layerObj.style.pixelTop ;
		}
		else
		{
			return layerObj.offsetTop ;
		}
	}
	if( value == "right" )
	{
		if ( NN4 )
		{
			return layerObj.left + getLayerSize( layerObj, "width" ) ;
		}
		else if ( NN6 )
		{
			return parseInt( layerObj.style.left + getLayerSize( layerObj, "width" )  ) ;
		}
		else if ( IE4 )
		{
			return layerObj.style.pixelLeft + getLayerSize( layerObj, "width" ) ;
		}
		else
		{
			return layerObj.offsetLeft + getLayerSize( layerObj, "width" ) ;
		}
	}
	if( value == "bottom" )
	{
		if ( NN4 )
		{
			return layerObj.top + getLayerSize( layerObj, "height" ) ;
		}
		else if ( NN6 )
		{
			return parseInt( layerObj.style.top + getLayerSize( layerObj, "height" ) ) ;
		}
		else if ( IE4 )
		{
			return layerObj.style.pixelTop + getLayerSize( layerObj, "height" ) ;
		}
		else
		{
			return layerObj.offsetTop + getLayerSize( layerObj, "height" ) ;
		}
	}
	if( value == "left" )
	{
		if ( NN4 )
		{
			return layerObj.left ;
		}
		else if ( NN6 )
		{
			return parseInt( layerObj.style.left ) ;
		}
		else if ( IE4 )
		{
			return layerObj.style.pixelLeft ;
		}
		else
		{
			return layerObj.offsetLeft ;
		}
	}
}



function getEventX( evt )
{
	if ( NN4 )
	{
		return evt.x ;
	}
	else if ( NN6 )
	{
		return ( window.scrollX + evt.clientX ) ;
	}
	else if ( IE4 || IE5 )
	{
		return ( document.body.scrollLeft + event.clientX ) ;
	}
}

function getEventY( evt )
{
	if ( NN4 )
	{
		return evt.y ;
	}
	else if ( NN6 )
	{
		return ( window.scrollY + evt.clientY ) ;
	}
	else if ( IE4 || IE5 )
	{
		return ( document.body.scrollTop + event.clientY ) ;
	}
}



function getCenterSize( layerObj, which )
{
	return ( getWinSize( which ) - getLayerSize( layerObj, which ) ) / 2 ;
}



function replaceContent( layerObj, txt )
{
	if ( NN4 )
	{
		layerObj.document.open( "text/html" ) ;
		layerObj.document.write( txt ) ;
		layerObj.document.close( ) ;
	}
	else
	{
		layerObj.innerHTML = txt ;
	}
}



function getPageOffset( which )
{
	if ( which == "left" )
	{
		if ( NN4 )
		{
			return self.pageXOffset ;
		}
		else if ( NN6 )
		{
			return window.scrollX ;
		}
		else
		{
			return document.body.scrollLeft ;
		}
	}
	if ( which == "top" )
	{
		if ( NN4 )
		{
			return self.pageYOffset ;
		}
		else if ( NN6 )
		{
			return window.scrollY ;
		}
		else
		{
			return document.body.scrollTop ;
		}
	}
}



function getWinSize( which )
{
	if ( which == "width" )
	{
		if ( NN4 || NN6 )
		{
			return window.innerWidth ;
		}
		else
		{
			return document.body.clientWidth ;
		}
	}
	if ( which == "height" )
	{
		if ( NN4 || NN6 )
		{
			return window.innerHeight ;
		}
		else
		{
			return document.body.clientHeight ;
		}
	}
}



function openWin( url, w, h, winName )
{
	var startWinX = ( screen.availWidth  - w ) / 2 ;
	var startWinY = ( screen.availHeight - h ) / 2 ;

	if ( arguments[4] == "no" )
		winOption = "directories=no,status=no,scrollbars=no,toolbar=no,location=no,menubar=no,resizable=yes,width=" + w + ",height=" + h + ",left=" + startWinX + ",top=" + startWinY ;

	if ( arguments[4] == "yes" )
		winOption = "directories=yes,status=yes,scrollbars=yes,toolbar=yes,location=yes,menubar=yes,resizable=yes,width=" + w + ",height=" + h + ",left=" + startWinX + ",top=" + startWinY ;

	winName = window.open( url, winName, winOption ) ;
	winName.focus( ) ;
}



function delayWin( url, winOption )
{
	var submenu = window.open ( url, "subwin", winOption ) ;

	if ( closetime )
		setTimeout("submenu.close( );", closetime * 1000 ) ;
}

function openSubWin( url,w,h,st,sc,t,l,m,r,x,y,ct,delay )
{
	closetime	= ct ;

	var winOption = "status=" + st + ",toolbar=" + t + ",location=" + l + ",menubar=" + m + ",scrollbars=" + sc + ",resizable=" + r + ",left=" + x + ",top=" + y + ",width=" + w + ",height=" + h ;

	setTimeout("delayWin('" +url+ "','" +winOption+ "')", delay * 1000 );
}





function intToHex( Integer )
{
	var hexValue = Integer.toString( 16 ) ;

	if ( hexValue.length == 1 ) hexValue = "0"+hexValue ;

	return hexValue ;
}

function hexToInt( hex )
{
	return parseInt( hex, 16 ) ;
}





function viewSource( fileName )
{
	var file     = ( fileName ) ? fileName : location.href ;
	var filePath = 'view-source:' + file ;

	location.href = filePath ;
}