function bb()
{

	if(document.getElementById('contactus').style.display == 'none')
	{
		var arrayPageScroll = getPageScroll();
		var arrayPageSize = getPageSize();

		leftVal = (((arrayPageSize[0] - 400) / 2) + 'px');
		topVal = (arrayPageScroll[1] + ((arrayPageSize[3] - 400) / 2) + 'px');

		document.getElementById('contactus').style.left = leftVal;
		document.getElementById('contactus').style.top = topVal;

		document.getElementById('contactus').style.display = '';
		var ht = document.getElementsByTagName("body")[0];
		ht.style.filter = "FILTER: progid:DXImageTransform.Microsoft.Alpha( style=0,opacity=25);";
		document.getElementById('name').focus();
	}
	else
	{
		document.getElementById('contactus').style.display = 'none';
		var ht = document.getElementsByTagName("body")[0];
		ht.style.filter = "";
	}
}

function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}


function getPageScroll(){

	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}




function HideContent(d) {

document.getElementById(d).style.display = "none";
}
function ShowContent(d) {

document.getElementById(d).style.display = "block";
}

var activeDiv="tab1";

var activeTab="t3";
var nClass="Active";
var oClass="NotActive";


var activeDiv2="Wallpapers";

var activeTab2="t11";
var nClass2="NotActive";
var oClass2="Active";





function changeClass (elementID, newClass) {
	var element = document.getElementById(elementID);
	
	element.setAttribute("class", newClass); //For Most Browsers
	element.setAttribute("className", newClass); //For IE; harmless to other browsers.
}



function showDiv(t,id){
	(id==1)? HideContent(activeDiv) : HideContent(activeDiv2);
	ShowContent(t);
	(id==1)? activeDiv=t : activeDiv2=t;
	
	
}

function showTab(t, id){
	(id==1)? changeClass(t, nClass) :  changeClass(t, nClass2);
	(id==1)? changeClass(activeTab, oClass) : changeClass(activeTab2, oClass2);
	(id==1)? activeTab=t : activeTab2=t;
}