/**
* FONCTIONS POUR LE CHANGEMENT DE PHOTOS
*
***/
function changePhoto(val) {
	var el = document.getElementById("contentphoto");
	
	if (val==0 && curPage>0) {					
		previousPage();
	} else {				
		if (listePhotos.length>((21*curPage)+val)) {
			el.src=listePhotos[(21*curPage)+val]["photo"];
			descriptif.innerHTML=listePhotos[(21*curPage)+val]["description"];
			
		}
	}
	
	//On essage de précharger encore les photos
	preload();
}

function mailto(name,domain,classname) {				
	document.write('<a href="mailto:' + name + '@' + domain + '" class="'+ classname +'">');
	document.write(name + '@' + domain + '</a>');									
}
	

function nextPage() {
	curPage=curPage+1;
	for (i=(21*curPage);i<((21*curPage)+21);i++) {
		el = document.getElementById("vignette_"+(i%21));
		
		if (listePhotos.length>i) {
			el.src=listePhotos[i]["src"];
		} else {
			el.src="/design/vignette_vide.gif";			
		}
	
	}
}

function previousPage() {
	if (curPage>0) {
	
		curPage=curPage-1;
		for (i=(21*curPage);i<((21*curPage)+21);i++) {
			el = document.getElementById("vignette_"+(i%21));
			
			if (listePhotos.length>i) {
				el.src=listePhotos[i]["src"];
			} else {
				el.src="/design/vignette_vide.gif";			
			}
		
		}			
	
	}
}	


/**
* FONCTIONS POUR LE PRE-CHARGEMENT DE PHOTOS
*
***/

function load() {
	if (document.images) {
		this.length=load.arguments.length;
		for (var i=0;i<this.length;i++) {
			this[i+1]=new Image();
			this[i+1].src=load.arguments[i];
		}
	}
}

function preload() {
// Cette fonction charge dans le cache toutes les images passées en paramètre

	for (i=0;i<listePhotos.length;i++) {
		new load(listePhotos[i]["photo"]);
	}

}

/**
* FONCTIONS POUR LE FADE
*
***/


fadeColor = "#3399ba";  // color to fade to 
//fadeColor = "#0"; 
stepIn = 20; // delay when fading in 
stepOut = 25; // delay when fading out 

/* set to true or false; true will 
** cause all links to fade automatically 
** (you won't need to add class="fade") 
***/ 
autoFade = true;   

/* set to true or false; true will cause all CSS 
** classes with "fade" in them to fade onmouseover 
***/ 
sloppyClass = true; 

/* set to true or false; true will make the script 
** work for Macs (IE 5+), but you will have to give 
** a name (name="blah") to each link that you want 
** to fade. 
***/ 
macCompat = false; 


hexa = new makearray(16); 
for(var i = 0; i < 10; i++) 
    hexa[i] = i; 
hexa[10]="a"; hexa[11]="b"; hexa[12]="c"; 
hexa[13]="d"; hexa[14]="e"; hexa[15]="f"; 

document.onmouseover = domouseover; 
document.onmouseout = domouseout; 

fadeColor = dehexize(fadeColor.toLowerCase()); 

var fadeId = new Array(); 

function dehexize(Color){ 
        var colorArr = new makearray(3); 
        for (i=1; i<7; i++){ 
                for (j=0; j<16; j++){ 
                        if (Color.charAt(i) == hexa[j]){ 
                                if (i%2 !=0) 
                                        colorArr[Math.floor((i-1)/2)]=eval(j)*16; 
                                else 
                                        colorArr[Math.floor((i-1)/2)]+=eval(j); 
                        } 
                } 
        } 
        return colorArr; 
} 

function domouseover() { 
        if(document.all){ 
                var srcElement = event.srcElement; 
                if ((srcElement.tagName == "A" && autoFade && srcElement.className != "nofade") || srcElement.className == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1)) { 
                                if (!srcElement.startColor) { 
                                        srcElement.startColor = (srcElement.style.color)? srcElement.style.color: srcElement.currentStyle.color; 
                                        srcElement.startColor = dehexize(srcElement.startColor.toLowerCase()); 
                                } 
                                var link = (macCompat? srcElement.name: srcElement.uniqueID); 
                                if (link) fade(srcElement.startColor,fadeColor,link,stepIn);                                 
                                else if (macCompat) alert("Error: Mac Compatility mode enabled, but link has no name."); 
                } 
        } 
} 

function domouseout() { 
        if (document.all){ 
                var srcElement = event.srcElement; 
                if ((srcElement.tagName == "A" && autoFade && srcElement.className != "nofade") || srcElement.className == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1)) { 
                        var link = (macCompat? srcElement.name: srcElement.uniqueID); 
                        if (link) fade(fadeColor,srcElement.startColor,link,stepIn); 
                } 
        } 
} 

function makearray(n) { 
    this.length = n; 
    for(var i = 1; i <= n; i++) 
        this[i] = 0; 
    return this; 
} 

function hex(i) { 
    if (i < 0) 
        return "00"; 
    else if (i > 255) 
        return "ff"; 
    else 
       return "" + hexa[Math.floor(i/16)] + hexa[i%16]; 
} 

function setColor(r, g, b, element) { 
      var hr = hex(r); var hg = hex(g); var hb = hex(b); 
      element.style.color = "#"+hr+hg+hb; 
} 

function fade(s,e,element,step) { 
        var sr = s[0]; var sg = s[1]; var sb = s[2]; 
        var er = e[0]; var eg = e[1]; var eb = e[2]; 
        
        if (fadeId[0] != null && fade[0] != element && eval(fadeId[0])) { 
                var orig = eval(fadeId[0]); 
                setColor(orig.startColor[0],orig.startColor[1],orig.startColor[2],orig); 
                var i = 1; 
                while(i < fadeId.length) { 
                        clearTimeout(fadeId[i]); 
                        i++; 
                } 
        } 
                
        for(var i = 0; i <= step; i++) { 
                fadeId[i+1] = setTimeout("setColor(Math.floor(" +sr+ " *(( " +step+ " - " +i+ " )/ " +step+ " ) + " +er+ " * (" +i+ "/" + 
                        step+ ")),Math.floor(" +sg+ " * (( " +step+ " - " +i+ " )/ " +step+ " ) + " +eg+ " * (" +i+ "/" +step+ 
                        ")),Math.floor(" +sb+ " * ((" +step+ "-" +i+ ")/" +step+ ") + " +eb+ " * (" +i+ "/" +step+ ")),"+element+");",i*step); 
        } 
        fadeId[0] = element; 
}