var newWin = null;

function closeWin(){
if (newWin != null){
if(!newWin.closed)
newWin.close();
}
}

function popUp(strURL,strType,strWidth,strHeight) {
closeWin();
var strOptions="";
if (strType=="console") strOptions="resizable,height="+strHeight+",width="+strWidth;
if (strType=="fixed") strOptions="status,height="+strHeight+",width="+strWidth;
if (strType=="elastic") strOptions="toolbar,menubar,scrollbars,resizable,location,height="+strHeight+",width="+strWidth;
if (strType=="fullscreen") strOptions="toolbar,menubar,scrollbars,resizable,location,width="+screen.availWidth+",height="+screen.availHeight;
newWin = window.open(strURL, '', strOptions);
newWin.focus();
}

function popup_centree(page,largeur,hauteur,options)
{
var top=(screen.height-hauteur)/2;     
var left=(screen.width-largeur)/2;     
window.open(
	page,
	"",
	"top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+options); 
}