function blocking(nr)
{
	if (document.getElementById)
	{
		current = (document.getElementById(nr).offsetWidth == 0) ? 'block' : 'none';
		document.getElementById(nr).style.display = current;
	}
	else if (document.all)
	{
		current = (document.all[nr].style.display == 'block') ? 'none' : 'block'
		document.all[nr].style.display = current;
	}
	else if (document.layers)
	{
		var i = parseInt(nr.substr(nr.length-1,1));
		var replacing = heights[i-1];
		if (shown[i])
		{
			shown[i] = false;
			replacing = -replacing;
			document.layers[nr].visibility = 'hide';
			document.layers[nr].top = safe;
		}
		else
		{
			shown[i] = true;
			document.layers[nr].visibility = 'show';
			var tempname = 'header' + i;
			document.layers[nr].top = document.layers[tempname].top + headerheight;
		}
		for (j=(i+1);j<=max;j++)
		{
			name1 = 'header' + j;
			document.layers[name1].top += replacing;
			if (shown[j])
			{
				name2 = 'number' + j;
				document.layers[name2].top += replacing;
			}
		}
	}
	else alert ('This link does not work in your browser.');
}

function popup(name, event) {
var x1 =  (screen.width  - 640)/2;
var y1 =  (screen.height - 660)/2;
myRemote = open(name, "propop", "screenX="+ x1 + ",screenY=" + y1 + ",left="+ x1 + ",top="+ y1 + ", width=680,height=620,channelmode=0,dependent=0,directories=0,fullscreen=0,location=0,menubar=0,resizable=0,scrollbars=0,status=0,toolbar=0");
}

function changeImgSrc(argImage){
//for ie5 >  and netscape 6
if (document.getElementById){
 tmpImg = document.getElementById('productImg'); 
}else if (document.all){ //Explorer 4
 tmpImg = document.all['productImg']; 
}
else{ 
 alert (js_fn_NOT_VALID_BROWSER);
 return;
}       
tmpImg.src = argImage;
}