var nbimage= 30;
var width;
var height;
var url;
var alte; 
var tar;
function gauche()
{
numimage= Math.round(Math.random()*(nbimage-1)+1);
if (numimage <= 10)
{
gotosite = "gal_photo_baie_somme_gratuit/menu_esprit.htm";
url = "picto/img1.jpg";
alte = "zoom sur"; 
tar = "_blank";
}
if (numimage > 10 && numimage <= 20)
{
gotosite = "gal_photo_baie_somme_gratuit/menu_hdr.htm";
url = "picto/img3.jpg";
alte = "zoom sur";
tar = "_blank";
}
if (numimage > 20)
{
gotosite = "gal_photo_baie_somme_gratuit/menu_pano.htm";
url = "picto/img4.jpg";
alte = "zoom sur";
tar = "_blank";
}
if(gotosite != "")
	{
	document.write ('<A HREF="' + gotosite + '"TARGET="' + tar + '">');	
	}
document.write('<IMG SRC="' + url + '" ALT="' + alte + '" BORDER=0>')
if(gotosite != "")
	{
	document.write('</A>')
	}
}