function popContact() {
	if (document.all) {
        var xMax = screen.width, yMax = screen.height;
	}
    else {
        if (document.layers) {
            var xMax = window.outerWidth, yMax = window.outerHeight;
		}
        else {
            var xMax = 640, yMax=480;
		}
	}

    var xOffset = (xMax - 200)/2, yOffset = (yMax - 200)/2;

    window.open('pop_contact.cfm','contact','width=415,height=203,screenX='+xOffset+',screenY='+yOffset+',top='+yOffset+',left='+xOffset+'');
}