// fichier affichage full_size


var epaisseur=210;
var masque_x=30;
var a_afficher="";
var vue=0;
var dir="";

function trans() {


//opacity('opa', 100, 0, 500);
//alert(navigator.appCodeName);
//alert(navigator.appVersion.substring(0, 1));
if (navigator.appCodeName=="Mozilla" && navigator.appVersion.substring(0, 1) >=4){ 
	document.getElementById("visualisation").style.display="block";
	document.getElementById("actu").style.display="none";
	//document.getElementById("visualisation").style.height=document.body.clientHeight;
	opacity('visualisation', 0, 80, 300);
	
	
 }
}


function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;
    vue=opacEnd;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
    	dir="down";
    	document.getElementById("visualisation_2").style.display="none";
    	
        for(i = opacStart; i >= opacEnd; i--) {
            
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
   	 }	
            
            	

    }
    
    
    else if(opacStart < opacEnd) {
    	dir="up";
    	//a_afficher=img;
        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
        

    }
      

  
    
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
    
    if(vue==opacity) {
    	// mise a jour des images et des divs
    	if (dir=="up") {
    		document.getElementById("visualisation_2").style.display="block";
		//document.images["full_size"].src=a_afficher;
	}
	else if(dir=="down") {
    		document.getElementById("visualisation").style.display="none";
		//document.images["full_size"].src="spacer.gif";
	
	}
    }
} 


function fermer_fs() {

	if (navigator.appCodeName=="Mozilla" && navigator.appVersion.substring(0, 1) >=4){ 
		document.getElementById("visualisation_2").style.display="none";
		document.getElementById("actu").style.display="block";
		
		//document.getElementById("visualisation").style.height=document.body.clientHeight;
		opacity('visualisation', 80, 0, 300, 'none');


	 }

}