function windowresized(){
	var xpos = getX(document.getElementById('mainnavi'));
	var imgpos = -681 + xpos;
	document.getElementById('altimage').style.left = imgpos + 'px';
}


function getX(el) {
	x = el.offsetLeft;
	if (!el.offsetParent) return x;
	else return (x+getX(el.offsetParent));
}



var openpopupWindow=null;
function openpopup (mypage,myname,w,h,pos,infocus){
 if(pos=='random'){
		LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;
		TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;
	}
	if(pos=='center'){
		LeftPosition=(screen.width)?(screen.width-w)/2:100;
		TopPosition=(screen.height)?(screen.height-h)/2:100;
	} else if((pos!='center' && pos!='random') || pos==null){
		LeftPosition=100;TopPosition=100;
	}
	var settings='width='+ w + ',height='+ h + ',top=' + TopPosition + ',left=' + LeftPosition + ',location=no,directories=no,menubar=no,toolbar=no,status=no,scrollbars=no,resizable=no,dependent=no';

    var openpopupWindow=window.open('',myname,settings);
    if(infocus=='front'){
		openpopupWindow.focus();
		openpopupWindow.location=mypage;
	}
}