var IE6 = 18;
var IE7 = 0;
var ind2 = navigator.appVersion.indexOf("MSIE");
var IE = parseInt(navigator.appVersion.substr(ind2+5));
switch(IE)
{
	case 6: var offset=IE6; break;
	case 7: var offset=IE7; break;
}

var boxH  = 20;
var boxMaxH = 170;
var boxTop = 350; if(document.all) boxTop=parseInt(boxTop-offset);var boxSpeed = 6;
var app_boxH  = boxH+1;
var aperto = 0;
T4=setTimeout('', 2);
function mostra()
{	// 199
	if( aperto == 1)
	{
		nascondi();
	}
	else
	{
		clearTimeout(T4);
		document.getElementById('box_lingua').style.height=boxH + "px";
		document.getElementById('box_lingua').style.top=boxTop + "px";
		if(boxH <= boxMaxH-1 )
		{
			boxH ++; 
			boxH ++;
			boxTop --;
			boxTop --;
			T4=setTimeout(' mostra()', boxSpeed);
		}
		else
		{
			aperto = 1;
		}
	}
}
function nascondi()
{
	clearTimeout(T4);
	document.getElementById('box_lingua').style.height=boxH + "px";
 	document.getElementById('box_lingua').style.top=boxTop + "px";
   	if(boxH >= app_boxH )
	{
    	boxH --; 
		boxH --;
		boxTop ++;
		boxTop ++;
        T4=setTimeout(' nascondi()', boxSpeed);
		aperto = 0;
	}
}