function goto_url(url)
{
	top.location.href=url;
}

function show_sub(div, img, src)
{
	show_div(div, true);
	changeImages(img, src);
}

function hide_sub(div, img, src)
{
	show_div(div, false);
	changeImages(img, src);
}

function show_div(tag, on) {
	if(document.layers)	   //NN4+
    	{
		document.layers[tag].visibility = on ? "show" : "hide";
	}
	else if(document.getElementById)	  //gecko(NN6) + IE 5+
	{
		var obj = document.getElementById(tag);
		obj.style.visibility = on ? "visible" : "hidden";
	}
	else if(document.all)	// IE 4
	{
		document.all[tag].style.visibility = on ? "visible" : "hidden";
	}
}


function changeImages() {
	if (document.images) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var marked_row = new Array;

function setSimplePointer(theRow, theRowNum, theAction) {
	setPointer(theRow, theRowNum, theAction, '#EEEEEE', '#DCDCDC', '#DCDCDC');
}

function setPointer(theRow, theRowNum, theAction, theDefaultColor, thePointerColor, theMarkColor)
{
    var theCells = null;

    if ((thePointerColor == '' && theMarkColor == '')
        || typeof(theRow.style) == 'undefined') {
        return false;
    }

    if (typeof(document.getElementsByTagName) != 'undefined') {
        theCells = theRow.getElementsByTagName('td');
    }
    else if (typeof(theRow.cells) != 'undefined') {
        theCells = theRow.cells;
    }
    else {
        return false;
    }

    var rowCellsCnt  = theCells.length;
    var domDetect    = null;
    var currentColor = null;
    var newColor     = null;

    if (typeof(window.opera) == 'undefined'
        && typeof(theCells[0].getAttribute) != 'undefined') {
        currentColor = theCells[0].getAttribute('bgcolor');
        domDetect    = true;
    }

    else {
        currentColor = theCells[0].style.backgroundColor;
        domDetect    = false;
    }

    if (currentColor == ''
        || currentColor.toLowerCase() == theDefaultColor.toLowerCase()) {
        if (theAction == 'over' && thePointerColor != '') {
            newColor              = thePointerColor;
        }
        else if (theAction == 'click' && theMarkColor != '') {
            newColor              = theMarkColor;
            marked_row[theRowNum] = true;
        }
    }
    // 4.1.2 Current color is the pointer one
    else if (currentColor.toLowerCase() == thePointerColor.toLowerCase()
             && (typeof(marked_row[theRowNum]) == 'undefined' || !marked_row[theRowNum])) {
        if (theAction == 'out') {
            newColor              = theDefaultColor;
        }
        else if (theAction == 'click' && theMarkColor != '') {
            newColor              = theMarkColor;
            marked_row[theRowNum] = true;
        }
    }

    else if (currentColor.toLowerCase() == theMarkColor.toLowerCase()) {
        if (theAction == 'click') {
            newColor              = (thePointerColor != '')
                                  ? thePointerColor
                                  : theDefaultColor;
            marked_row[theRowNum] = (typeof(marked_row[theRowNum]) == 'undefined' || !marked_row[theRowNum])
                                  ? true
                                  : null;
        }
    }

    if (newColor) {
        var c = null;

        if (domDetect) {
            for (c = 0; c < rowCellsCnt; c++) {
                theCells[c].setAttribute('bgcolor', newColor, 0);
            }
        }
        else {
            for (c = 0; c < rowCellsCnt; c++) {
                theCells[c].style.backgroundColor = newColor;
            }
        }
    }

    return true;
}