function chgBg(obj,color)
{
	if (document.all || document.getElementById) obj.style.backgroundColor=color;
	else if (document.layers) obj.bgColor=color;
}
function menuvalt(num,newclass)
{
	document.getElementById('menu_'+num).className=newclass;
	if (newclass=='menuover')
		lnkvalt(num,'menu_lnk_hover');
	else
		lnkvalt(num,'menu_lnk');
}
function lnkvalt(lnk_num,lnk_newclass){
	document.getElementById('lnk_'+lnk_num).className=lnk_newclass;
}
function submenuvalt(num,newclass)
{
	document.getElementById('sub_'+num).className=newclass;
}
function openhtmlWindow(sourceFile, windowWidth, windowHeight, distanceTop, distancLeft,needscroll)
{
	pictureWindow = window.open(sourceFile, "plainwindow","width=" + windowWidth + ",height=" + windowHeight + ",top=" + distanceTop + ",left=" + distancLeft + ",toolbar=0,location=0,resizable=0,status=0,menubar=0,fullscreen=0,scrollbars="+needscroll+"");
	pictureWindow.focus();	
}