function ImageSize(ImgName,ImgParam,w1024,h1024) {

	var TailleHaut= document.body.clientHeight;
	var TailleLarg= screen.width;
	var TailleHaut= screen.height;

	if (w1024 != "")
	{
		w=(w1024*TailleLarg)/1024;
	}
	if (h1024 != "")
	{
		h=(h1024*TailleHaut)/768;
	}

	if (w1024 != "" && h1024 != "")
	{
		document.write("<img src=\""+ImgName+"\" width="+w+"px height="+h+"px "+ImgParam+" />");
	}
	else if (w1024 != "")
	{
		document.write("<img src=\""+ImgName+"\" width="+w+"px "+ImgParam+" />");
	}
	else if (h1024 != "")
	{
		document.write("<img src=\""+ImgName+"\" height="+h+"px "+ImgParam+" />");
	}
	else
	{
		document.write("<img src=\""+ImgName+"\" "+ImgParam+" />");
	}
}