/**
 * Function : dump()
 * Arguments: The data - array,hash(associative array),object
 *    The level - OPTIONAL
 * Returns  : The textual representation of the array.
 * This function was inspired by the print_r function of PHP.
 * This will accept some data as the argument and return a
 * text that will be a more readable version of the
 * array/hash/object that is given.
 * Docs: http://www.openjs.com/scripts/others/dump_function_php_print_r.php
 */
function dump(arr,level) {
	var dumped_text = "";
	if(!level) level = 0;
	
	//The padding given at the beginning of the line.
	var level_padding = "";
	for(var j=0;j<level+1;j++) level_padding += "    ";
	
	if(typeof(arr) == 'object') { //Array/Hashes/Objects 
		for(var item in arr) {
			var value = arr[item];
			
			if(typeof(value) == 'object') { //If it is an array,
				dumped_text += level_padding + "'" + item + "' ...\n";
				dumped_text += dump(value,level+1);
			} else {
				dumped_text += level_padding + "'" + item + "' => \"" + value + "\"\n";
			}
		}
	} else { //Stings/Chars/Numbers etc.
		dumped_text = "===>"+arr+"<===("+typeof(arr)+")";
	}
	return dumped_text;
}


function parseFloatString (v,d) {
	var x = parseFloat( !v ? 0 : v);
	x = parseFloat( Math.round(  x * Math.pow(10,d)  )  ) / Math.pow(10,d);
	y = x + "";
	if (y.indexOf(".")==-1) y = x + ".";
	var a = y.split(".");
	if (a[1].length < d) for(k=a[1].length;k < d;k++) a[1]+="0";
	y = a[0]+"."+a[1];
	return y;
}

function setWriteHere(search) {
	/* add on click event handler */
	$("input[rel^="+search+"]").click( function () {
		var ar = $(this).attr('rel').split('|');
		if($(this).val()==ar[1]) { $(this).val(""); if (ar[3]) $(this).attr('class',ar[3]); }
	} );
	/* add on blur event handler */
	$("input[rel^="+search+"]").blur( function () {
		var ar = $(this).attr('rel').split('|');
		if($(this).val()=="") { $(this).val(ar[1]); if (ar[2]) $(this).attr('class',ar[2]); }
	} );
	/* trigger blur event */
	$("input[rel^="+search+"]").each( function () { $(this).blur(); } );

}


function convertDecDeg(v,tipo) {
	if (!tipo) tipo='N';
	var deg;
	deg = v;

	if (!deg){
		//alert("Enter a value for decimal degrees.");
		return "";
	} else if (deg > 180 || deg < 0){
		//alert("Enter a value less than 180 for deg or greater than 0");
		return convertDecDeg(-v,(tipo=='N'?'S': (tipo=='E'?'W':tipo) ));
	} else {
		var gpsdeg = parseInt(deg);
		var remainder = deg - (gpsdeg * 1.0);
		var gpsmin = remainder * 60.0;

		// document.inDecDeg.form2_gpsdeg.value = gpsdeg;
		// document.inDecDeg.form2_gpsmin.value = gpsmin.toFixed(4);

		var D = gpsdeg;
		var M = parseInt(gpsmin);
		var remainder2 = gpsmin - (parseInt(gpsmin)*1.0);
		var S = parseInt(remainder2*60.0);
		return D+"&deg; "+M+"' "+S+"'' "+tipo;
	}
}
 
function distance(lat1,lon1,lat2,lon2) {
	
	var R = 6371; // km (change this constant to get miles)
	var dLat = (lat2-lat1) * Math.PI / 180;
	var dLon = (lon2-lon1) * Math.PI / 180; 
	var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
		Math.cos(lat1 * Math.PI / 180 ) * Math.cos(lat2 * Math.PI / 180 ) * 
		Math.sin(dLon/2) * Math.sin(dLon/2); 
	var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a)); 
	var d = R * c;
	if (d>1) return Math.round(d)+"km";
	else if (d<=1) return Math.round(d*1000)+"m";
	return d;

}

function addruler() {

	var ruler1 = new google.maps.Marker({
		position: map.getCenter() ,
		icon: new google.maps.MarkerImage( "http://www.barattalo.it/map/inc/img/dot.png" , new google.maps.Size(20, 20)),
		map: map,
		draggable: true
	});

	var ruler2 = new google.maps.Marker({
		position: map.getCenter() ,
		icon: new google.maps.MarkerImage( "http://www.barattalo.it/map/inc/img/dot.png" , new google.maps.Size(20, 20)),
		map: map,
		draggable: true
	});
	var ruler1label = new Label({ map: map });
	var ruler2label = new Label({ map: map });
	ruler1label.bindTo('position', ruler1, 'position');
	ruler2label.bindTo('position', ruler2, 'position');

	var rulerpoly = new google.maps.Polyline({
		path: [ruler1.position, ruler2.position] ,
		strokeColor: "#FFFF00",
		strokeOpacity: .7,
		strokeWeight: 7
	});
	rulerpoly.setMap(map);

	ruler1label.set('text',distance( ruler1.getPosition().lat(), ruler1.getPosition().lng(), ruler2.getPosition().lat(), ruler2.getPosition().lng()));
	ruler2label.set('text',distance( ruler1.getPosition().lat(), ruler1.getPosition().lng(), ruler2.getPosition().lat(), ruler2.getPosition().lng()));


	google.maps.event.addListener(ruler1, 'drag', function() {
		rulerpoly.setPath([ruler1.getPosition(), ruler2.getPosition()]);
		ruler1label.set('text',distance( ruler1.getPosition().lat(), ruler1.getPosition().lng(), ruler2.getPosition().lat(), ruler2.getPosition().lng()));
		ruler2label.set('text',distance( ruler1.getPosition().lat(), ruler1.getPosition().lng(), ruler2.getPosition().lat(), ruler2.getPosition().lng()));
	});

	google.maps.event.addListener(ruler2, 'drag', function() {
		rulerpoly.setPath([ruler1.getPosition(), ruler2.getPosition()]);
		ruler1label.set('text',distance( ruler1.getPosition().lat(), ruler1.getPosition().lng(), ruler2.getPosition().lat(), ruler2.getPosition().lng()));
		ruler2label.set('text',distance( ruler1.getPosition().lat(), ruler1.getPosition().lng(), ruler2.getPosition().lat(), ruler2.getPosition().lng()));
	});

}