var NS4 = (document.layers)? true:false;
var IE4 = (document.all)? true:false;
var DOM = (document.getElementById)? true:false;



/*********************************************************************
// SWITCH IMAGES MENU
*********************************************************************/
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}




function swCouleur(cellule,fond)
{
  cellule.style.backgroundColor = fond;
}

function Valider()
{
	if((document.getElementById('nom').value.length < 1) || (document.getElementById('email').value.length < 1) || (document.getElementById('message').value.length < 1))
	{
		alert("Merci de bien vouloir remplir tous les champs");
		return false;
	}
	else return true;
}



/*********************************************************************
// POPUP IMAGES
*********************************************************************/
function Popup(X,id,cat,W,H)
{
	// X   : On / Off
	// id  : id photo
	// cat : 1 = pestac, 2 = reve
	// W   : largeur popup
	// H   : hauteur popup

	document.getElementById('POPUP_IMG').style.visibility = "hidden";
	document.getElementById('POPUP_IMG_OMBRE').style.visibility = "hidden";

	if(X == 1)
	{
		if(cat == 1) document.getElementById('POPUP_IMG').innerHTML  = "<img class='IMG_POP' onClick='Popup(0);' onMouseOver=\"return(BulleWrite('','(Cliquez pour fermer)'));\" onMouseOut='return(BulleHide());' src='Galerie/Pestac/"+id+".jpg' />";
		if(cat == 2) document.getElementById('POPUP_IMG').innerHTML  = "<img class='IMG_POP' onClick='Popup(0);' onMouseOver=\"return(BulleWrite('','(Cliquez pour fermer)'));\" onMouseOut='return(BulleHide());' src='Galerie/Reve/"+id+".jpg' />";

		document.getElementById('POPUP_IMG_OMBRE').style.width  = W + 6 + "px";
		document.getElementById('POPUP_IMG_OMBRE').style.height = H + 6 + "px";
		document.getElementById('POPUP_IMG_OMBRE').style.left = document.documentElement.scrollLeft + (screen.width-W)/2 + 3 + "px";
		document.getElementById('POPUP_IMG_OMBRE').style.top  = document.documentElement.scrollTop + 303 + "px";
		document.getElementById('POPUP_IMG_OMBRE').style.visibility = "visible";

		document.getElementById('POPUP_IMG').style.left = document.documentElement.scrollLeft + (screen.width-W)/2 + "px";
		document.getElementById('POPUP_IMG').style.top  = document.documentElement.scrollTop + 300 + "px";
		document.getElementById('POPUP_IMG').style.visibility = "visible";
	}
	if(X == 0)
	{
		document.getElementById('POPUP_IMG').style.visibility = "hidden";
		document.getElementById('POPUP_IMG_OMBRE').style.visibility = "hidden";
	}
}