// fonctions de modifications de l opacite des images

var TabAlpha=new Array();
TabAlpha.length=5;		// 5 images alpha A MODIFIER SI PLUS D'IMAGES
for (var alphaI=0;alphaI<TabAlpha.length;alphaI++) {
	TabAlpha[alphaI]=-1;
}

function ModifAlpha(no,alpha){
	if (document.images["img"+no]) {
		if (document.images["img"+no].filters) {
			TabAlpha[no]=alpha;
			if (tjstimer==0) {setTimeout("tjstimerAlpha()",30)}
		}
	}
}

var tjstimer=0;

function tjstimerAlpha() {
	var opacity=0;
	for (var alphaI=0;alphaI<TabAlpha.length;alphaI++) {
		if (TabAlpha[alphaI]!=-1) {
			opacity =TabAlpha[alphaI] - document.images["img"+alphaI].filters.alpha.opacity;
			if (opacity!=0) {
				tjstimer=1;
				document.images["img"+alphaI].filters.alpha.opacity+=Math.abs(opacity)/opacity * 5;		
			} else {
				TabAlpha[alphaI]=-1
			}
		}
	}
	if (tjstimer==1) {setTimeout("tjstimerAlpha()",30);} else {tjstimer=0}
}



function context1() {
ModifAlpha(1,100);
}

function context2() {

ModifAlpha(2,100);
}

function context3() {

ModifAlpha(3,100);
}

function context4() {

ModifAlpha(4,100);
}


function out_context1() {
	ModifAlpha(1,0);
}

function out_context2() {
	ModifAlpha(2,0);
}

function out_context3() {
	ModifAlpha(3,0);
}

function out_context4() {
	ModifAlpha(4,0);
}








function div_a1() {
	ModifAlpha(1,100);
}
function div_a2() {
	ModifAlpha(1,100);
}

function div_a3() {
	ModifAlpha(2,100);
}
function div_a4() {
	ModifAlpha(2,100);
}

function div_a5() {
	ModifAlpha(3,100);
}
function div_a6() {
	ModifAlpha(3,100);
}
function div_a7() {
	ModifAlpha(4,100);
}
function div_a8() {
	ModifAlpha(4,100);
}


function out_a1() {
	ModifAlpha(1,0);
}
function out_a2() {
	ModifAlpha(1,0);
}

function out_a3() {
	ModifAlpha(2,0);
}
function out_a4() {
	ModifAlpha(2,0);
}

function out_a5() {
	ModifAlpha(3,0);
}
function out_a6() {
	ModifAlpha(3,0);
}

function out_a7() {
	ModifAlpha(4,0);
}
function out_a8() {
	ModifAlpha(4,0);
}






function div_cote1() {
	document.all.cote1.style.weight=900;
	ModifAlpha(1,100);
}
function div_cote2() {
	ModifAlpha(1,100);
}

function div_cote3() {
	ModifAlpha(2,100);
}
function div_cote4() {
	ModifAlpha(2,100);
}

function div_cote5() {
	ModifAlpha(3,100);
}
function div_cote6() {
	ModifAlpha(3,100);
}



function out_cote1() {
	ModifAlpha(1,0);
}
function out_cote2() {
	ModifAlpha(1,0);
}

function out_cote3() {
	ModifAlpha(2,0);
}
function out_cote4() {
	ModifAlpha(2,0);
}

function out_cote5() {
	ModifAlpha(3,0);
}
function out_cote6() {
	ModifAlpha(3,0);
}