var i_m ;
var ie4 = ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )) ;
var ns4 = ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 4 )) ;

        if (ns4) {
					layerRef="document.layers";
					styleRef="";
				 } 	else 
				 {
					layerRef="document.all";
					styleRef=".style";
			     }


function right_click()
	{
	rightc.style.top = event.y ;
	rightc.style.left = event.x ;
	rightc.style.visibility = "visible";
	}

function show4(calque)
	{
	eval(layerRef + '["' + calque +'"]' + styleRef + '.top = event.y - 110');
	eval(layerRef + '["' + calque +'"]' + styleRef + '.left = event.x - 365');	
  	eval(layerRef + '["' + calque +'"]' + styleRef + '.visibility = "visible"');
	}
		
function show(calque)
	{
	eval(layerRef + '["' + calque +'"]' + styleRef + '.top = event.y + 1');
	eval(layerRef + '["' + calque +'"]' + styleRef + '.left = event.x + 1');	
  	eval(layerRef + '["' + calque +'"]' + styleRef + '.visibility = "visible"');
	}
	
function show2(calque)
	{
	eval(layerRef + '["' + calque +'"]' + styleRef + '.visibility = "visible"');
	}

function show3(calque)
	{
	eval(layerRef + '["' + calque +'"]' + styleRef + '.top = event.y - 10');
	eval(layerRef + '["' + calque +'"]' + styleRef + '.left = event.x + 10');	
  	eval(layerRef + '["' + calque +'"]' + styleRef + '.visibility = "visible"');
	}	
	
function hide(calque)
	{
  	eval(layerRef + '["' + calque +'"]' + styleRef + '.visibility = "hidden"');
	}
	
function modif_image_r() {
	document.images['imgrightc'].src="image/demo/right_click_over.gif" ;
	}
	
function modif_image() {
  	rightc.style.visibility = "visible";
	document.images['imgrightc'].src="image/demo/right_click.gif" ;
	}