function f_displayDownload(pNum_display,lNum_idDownload){
	if(pNum_display==1){
		document.getElementById("donwload1").style.display="none";
		document.getElementById("donwload2").style.display="none";
		document.getElementById("donwload"+lNum_idDownload).style.display="";
	} else {
		document.getElementById("donwload1").style.display="none";
		document.getElementById("donwload2").style.display="none";
	}
}