function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}



var preloadFlag = false;

function preloadImages() {
	var nom;
	if (document.images) {
		groupe = newImage("images/"+nom+"_02_roll.jpg");
		produits = newImage("images/"+nom+"_03_roll.jpg");
		joindre = newImage("images/"+nom+"_05_roll.jpg");
		preloadFlag = true;
	}
}
preloadImages();



function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}


function swap(e){
	var elem = document.getElementById(e);
	var clr = "transparent";
	
	switch (e){
		case "oneImg" : clr = "#705d6a"; break;
		case "twoImg" : clr = "#446b94"; break;
		case "threeImg" : clr = "#3d7571"; break;
		case "fourImg" : clr = "#57648a"; break;
	}
	elem.parentNode.getElementsByTagName("p")[0].style.backgroundColor = clr;
}

function swapbck(e){
	var elem = document.getElementById(e);
	elem.parentNode.getElementsByTagName("p")[0].style.backgroundColor = "transparent";
}