var isNav4, isNav6, isIE4;
function setBrowser(){if (navigator.appVersion.charAt(0) == "4"){if (navigator.appName.indexOf("Explorer") >= 0)
{isIE4 = true;}
else {isNav4 = true;}}
else if (navigator.appVersion.charAt(0) > "4"){isNav6 = true;}}
function getStyleBySelector( selector ){if (!isNav6){ return null;}
var sheetList = document.styleSheets; var ruleList; var i, j;
for (i=sheetList.length-1; i >= 0; i--){ ruleList = sheetList[i].cssRules;
for (j=0; j<ruleList.length; j++){ if (ruleList[j].type == CSSRule.STYLE_RULE && ruleList[j].selectorText == selector)
{return ruleList[j].style;}}}
return null;}
function getIdProperty( id, property )
{if (isNav6){var styleObject = document.getElementById( id );
if (styleObject != null){styleObject = styleObject.style;
if (styleObject[property]){return styleObject[ property ];}}
styleObject = getStyleBySelector( "#" + id );
return (styleObject != null) ?
styleObject[property] :
null;}
else if (isNav4){return document[id][property];}
else {return document.all[id].style[property];}}
function setIdProperty( id, property, value ){ if (isNav6) {
var styleObject = document.getElementById( id );
if (styleObject != null){styleObject = styleObject.style; styleObject[ property ] = value;}}
else if (isNav4){document[id][property] = value;}
else if (isIE4){document.all[id].style[property] = value;}}
function generic_move( id, xValue, yValue, additive )
{var left = getIdProperty(id, "left");
var top = getIdProperty(id, "top");
var leftMatch, topMatch;
if (isNav4) {leftMatch = new Array( 0, left, "");
topMatch = new Array( 0, top, "");}
else if (isNav6 || isIE4 ) {var splitexp = /([-0-9.]+)(\w+)/;
leftMatch = splitexp.exec( left );
topMatch = splitexp.exec( top );
if (leftMatch == null || topMatch == null)
{leftMatch = new Array(0, 0, "px");
topMatch = new Array(0, 0, "px");}}
left = ((additive) ? parseFloat( leftMatch[1] ) : 0) + xValue;
top = ((additive) ? parseFloat( topMatch[1] ) : 0) + yValue;
setIdProperty( id, "left", left + leftMatch[2] );
setIdProperty( id, "top", top + topMatch[2] );}
function moveIdTo( id, x, y )
{generic_move( id, x, y, false );}
function moveIdBy( id, x, y)
{generic_move( id, x, y, true );}
function hex( n )
{var hexdigits = "0123456789abcdef";
return ( hexdigits.charAt(n >> 4) + hexdigits.charAt(n & 0x0f) );}
function getBackgroundColor( id )
{var color;
if (isNav4){color = document[id].bgColor;}
else if (isNav6) {var parseExp = /rgb.(\d+),(\d+),(\d+)./;
var rgbvals;
color = getIdProperty( id, "backgroundColor" );
if (color)
{rgbvals = parseExp.exec( color );
if (rgbvals)
{color = "#" + hex( rgbvals[1] ) + hex( rgbvals[2] ) +
hex( rgbvals[3] );}}
return color;}
else if (isIE4){return document.all[id].backgroundColor;}
return "";}
function getDocument( divName ) {var doc;
if (isNav4) {doc = window.document[divName].document;}
else if (isNav6) {doc = document;}
else if (isIE4)
{doc = document;}
return doc;}