function windimension(){

	var windowDimensionArray = new Array();
	
	if(window.innerHeight !==undefined)
	{
	windowDimensionArray[0] = window.innerWidth
	windowDimensionArray[1] = window.innerHeight
	} 
	else
	{ // IE varieties
		var D= (document.body.clientWidth)? document.body: document.documentElement;
		windowDimensionArray[0] = D.clientWidth;
		windowDimensionArray[1] = D.clientHeight;
	}
	return windowDimensionArray;
	}
	
window.addEvent('domready', function() {			
	var dimensionArray = windimension();
	if(dimensionArray[1] >= 660){
		if($('main')){
			$('main').style.top = '50%';
			$('main').style.marginTop = '-285px';
		}
		if($('about')){
			$('about').style.top = '50%';
			$('about').style.marginTop = '-330px';
		}
		if($('contact')){
			$('contact').style.top = '50%';
			$('contact').style.marginTop = '-330px';
		}
		if($('artist')){
			$('artist').style.top = '50%';
			$('artist').style.marginTop = '-330px';
		}
		if($('artists')){
			$('artists').style.top = '50%';
			$('artists').style.marginTop = '-330px';
		}

	}
});