function calculDistance(fromAddress,toAddress) 
	{
		if (!GBrowserIsCompatible())
		{
			alert('Désolé, votre navigateur n\'est pas compatible avec Google Maps');
			return false;
		} 
		 //extraire la lat long
		directions = new GDirections();
		
		//directions.load("from: 37000 tours, FR to: 18000 bourges, FR");
		//directions.load("from: 49.7,1.766667 to: 49.633333,1.816667 locale: fr ");
		//extraire id, adr
		var sSeparator = ';:;';
		var tmpinput_from = fromAddress.split(sSeparator);
		var tmpinput_to = toAddress.split(sSeparator);
		fromAddress = tmpinput_from[0];
		toAddress = tmpinput_to[0];
		var pays1 = '';
		var pays2 = '';
		var RE = /^\d+(\.{0,1}\d+)?,\d+(\.{0,1}\d+)?$/;
		if(!RE.test(fromAddress))
		{
			pays1 = ' ,FR' ;
		}
		if(!RE.test(toAddress))
		{
			pays2 = ' ,FR' ;
		}
		//[DEBUG]//alert("from: " + fromAddress + pays1 + " to: " + toAddress + pays2);
		directions.load("from: " + fromAddress + pays1 + " to: " + toAddress + pays2);  // Commenter ceci pour tester
		///directions.load("from: " + 'fgsdfgsfg' + " to: " + 'dfqsdfqsdf'); // Décommenter ceci pour tester
		GEvent.addListener(directions, "error", function()
		{
			var err;
			if (directions.getStatus().code == G_GEO_UNKNOWN_ADDRESS) 
				err = 'G_GEO_UNKNOWN_ADDRESS';
			else if (directions.getStatus().code == G_GEO_SERVER_ERROR) 
				err = 'G_GEO_SERVER_ERROR';
			else if (directions.getStatus().code == G_GEO_MISSING_QUERY) 
				err = 'G_GEO_MISSING_QUERY';
			else if (directions.getStatus().code == G_GEO_BAD_KEY) 
				err = 'G_GEO_BAD_KEY';
			else if (directions.getStatus().code == G_GEO_BAD_REQUEST) 
				err = 'G_GEO_BAD_REQUEST';
			else
				err = 'UNKNOWN_ERROR_OCCURRED';
			GDownloadUrl("traiter-err.php?err="+err+'&from='+fromAddress+pays1+'&to='+toAddress+pays2, function(data) {});
      alert("Une erreur est survenue lors du calcul de votre devis! Veuillez réessayer plus tard.");
		}
		);
													   
													   
		GEvent.addListener(directions,"load", function() {
		// Indique la distance sous cette forme : 157 km
		//var distance = directions.getDistance().html;
		// Indique la distance sous cette forme : 157147
		var mesure = directions.getDistance().meters;
		// Indique la dure de l'itinraire sous cette forme : 1 heure 58minutes
		var duree = directions.getDuration().seconds;
		// Indique les infos distance + temps sous cette forme : 157 km( environ 1 heure 58 minutes )
		//var sommaire = directions.getSummaryHtml();		
		document.getElementById('dist').value = mesure;
		document.getElementById('duree').value = duree;
	//alert("Distance en m : " + document.getElementById('dist').value );
		//alert("- Distance : "+distance+"\n- Mesure : "+mesure+"\n- Dure :"+duree+"\n- Sommaire : "+sommaire);
		//envoyer les donnees au script php
			//GDownloadUrl("php.php?distance="+distance+"&temps="+duree+"", function(data) {}) 		
		document.getElementById('taxiF').submit();
		});
		
	}
	function erreur()
	{ 
	}
//	function erreur()
//	{ 
//		alert(directions.getStatus().code);
//		if (directions.getStatus().code == G_GEO_UNKNOWN_ADDRESS) 
//			alert("No corresponding geographic location could be found for one of the specified addresses. This may be due to the fact that the address is relatively new, or it may be incorrect.\nError code: " + directions.getStatus().code); 
//		else if (directions.getStatus().code == G_GEO_SERVER_ERROR) 
//			alert("A geocoding or directions request could not be successfully processed, yet the exact reason for the failure is not known.\n Error code: " + directions.getStatus().code);
//		else if (directions.getStatus().code == G_GEO_MISSING_QUERY) 
//			alert("The HTTP q parameter was either missing or had no value. For geocoder requests, this means that an empty address was specified as input. For directions requests, this means that no query was specified in the input.\n Error code: " + directions.getStatus().code);
//		else if (directions.getStatus().code == G_GEO_BAD_KEY) 
//			alert("The given key is either invalid or does not match the domain for which it was given. \n Error code: " + directions.getStatus().code);
//		else if (directions.getStatus().code == G_GEO_BAD_REQUEST) 
//			alert("A directions request could not be successfully parsed.\n Error code: " + directions.getStatus().code);
//		else alert("An unknown error occurred." + directions.getStatus().code);
//	}