function point_it(event){


if (navigator.appName != "Microsoft Internet Explorer") {
    pos_x = event.offsetX?(event.offsetX):event.pageX-document.getElementById("sat_images").offsetLeft;
    pos_y = event.offsetY?(event.offsetY):event.pageY-document.getElementById("sat_images").offsetTop;
	// voor firefox
	if(navigator.userAgent.toLowerCase().indexOf('firefox') || navigator.userAgent.toLowerCase().indexOf('safari') > -1||navigator.userAgent.toLowerCase().indexOf('chrome') > -1||navigator.userAgent.toLowerCase().indexOf('opera') > -1)
	{
        	pos_x=pos_x/ 0.805433;
	        pos_x=Math.round(pos_x-100);
	        pos_y=pos_y/ 0.77959;
	        pos_y=Math.round(pos_y-100);

	}
	else
	{
	        pos_x = event.offsetX?(event.offsetX):event.pageX-document.getElementById("sat_images").offsetLeft+460;
	        pos_x=pos_x-(window.innerWidth-1004)/2;
	        pos_x=pos_x/ 0.805433;
	        pos_x=Math.round(pos_x)-680;
	        pos_y=pos_y/ 0.77959;
	        pos_y=Math.round(pos_y)-100;        	    
    	}

}
else
{

    pos_x = event.offsetX?(event.offsetX):event.pageX-document.getElementById("sat_images").offsetLeft;
    pos_x=pos_x/ 0.785714;
    pos_x=Math.round(pos_x) - 100;
    pos_y = event.offsetY?(event.offsetY):event.pageY-document.getElementById("sat_images").offsetTop;
    pos_y=pos_y/ 0.770513;
    pos_y=Math.round(pos_y) - 100;
}

  window.location = "homepage.aspx?html=zoom&xas=" + roundTo(pos_x,20) + "&yas=" + roundTo(pos_y,20);
}

function init(values) {
// obsolete
}

function roundTo(value, factor)
{
	value = value / factor;
	value = Math.round(value);
	value = value * factor;
	return value;
}