function showContacts() {
	var viewportwidth;
	var viewportheight;

    var scrollX = window.pageXOffset || document.body.scrollLeft || document.documentElement.scrollLeft;
	var scrollY = window.pageYOffset || document.body.scrollTop || document.documentElement.scrollTop;
	 
	if (typeof window.innerWidth != 'undefined') {
	    viewportwidth = window.innerWidth,
	    viewportheight = window.innerHeight
	} else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0) {
	    viewportwidth = document.documentElement.clientWidth,
	    viewportheight = document.documentElement.clientHeight
	} else {
	    viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
	    viewportheight = document.getElementsByTagName('body')[0].clientHeight
	}
    document.getElementById("contacts").style.display = "block";
    document.getElementById("contacts").style.left = (viewportwidth - document.getElementById("contacts").offsetWidth) / 2 + scrollX + "px";
    document.getElementById("contacts").style.top = (viewportheight - document.getElementById("contacts").offsetHeight) / 2 + scrollY + "px";

    document.getElementById("overlay").style.width = document.getElementById("outer").offsetWidth + "px";
    document.getElementById("overlay").style.height = document.getElementById("outer").offsetHeight + "px";
    document.getElementById("overlay").style.display = "block";
    
   Nifty("div.popup,div.popup_content", "small");
}

function hideContacts() {
    document.getElementById("overlay").style.display = "none";   
    document.getElementById("contacts").style.display = "none";   
}

function showLogin() {
	var viewportwidth;
	var viewportheight;

    var scrollX = window.pageXOffset || document.body.scrollLeft || document.documentElement.scrollLeft;
	var scrollY = window.pageYOffset || document.body.scrollTop || document.documentElement.scrollTop;
	 
	if (typeof window.innerWidth != 'undefined') {
	    viewportwidth = window.innerWidth,
	    viewportheight = window.innerHeight
	} else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0) {
	    viewportwidth = document.documentElement.clientWidth,
	    viewportheight = document.documentElement.clientHeight
	} else {
	    viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
	    viewportheight = document.getElementsByTagName('body')[0].clientHeight
	}
    document.getElementById("loginp").style.display = "block";
    document.getElementById("loginp").style.left = (viewportwidth - document.getElementById("loginp").offsetWidth) / 2 + scrollX + "px";
    document.getElementById("loginp").style.top = (viewportheight - document.getElementById("loginp").offsetHeight) / 2 + scrollY + "px";

    document.getElementById("overlay").style.width = document.getElementById("outer").offsetWidth + "px";
    document.getElementById("overlay").style.height = document.getElementById("outer").offsetHeight + "px";
    document.getElementById("overlay").style.display = "block";   
    
    Nifty("div.popup,div.popup_content", "small");
}

function hideLogin() {
    document.getElementById("overlay").style.display = "none";   
    document.getElementById("loginp").style.display = "none";
    document.getElementById("incorrect").style.display = "none";
}