var g_ver = 0;
var g_ie = (navigator.appName.indexOf("Microsoft") != -1);
if(g_ie)
{
	if(navigator.appVersion.indexOf('Mac') == -1)
	{
		var g_numch = parseInt(navigator.appVersion.charAt(0));
		if(!isNaN(g_numch))
			g_ver = g_numch;
	}
}
if((!g_ie) || (g_ver < 4) || (screen.width < 800))
	alert("This site is designed for browsing with Microsoft Internet Explorer - version 4 and above,\r\nand with a minimum 800x600 pixel resolution.\r\n\r\nUnfortunately your case does not meet these requirements,\r\ntherefor you may encounter some problems while browsing the site.");
	//parent.location = "clientError.asp";