function showDiv(id) {
	var ident = '#' + id;
	$(ident).css('left', ( $(window).width() / 2 ) - 400);
	var scrollPos = getPageScroll();
	$(ident).css('top', scrollPos[1] + 50);
	$(ident).css('display', 'block');
}

function hideDiv(id) {
	var ident = '#' + id;
	$(ident).css('display', 'none');
}

function swapImage(link,id) {
	var ident = '#' + id;
	$(ident).attr('src',link);
}

function getPageScroll() {
	var xScroll, yScroll;
	if (self.pageYOffset) {
	  yScroll = self.pageYOffset;
	  xScroll = self.pageXOffset;
	} else if (document.documentElement && document.documentElement.scrollTop) {	 // Explorer 6 Strict
	  yScroll = document.documentElement.scrollTop;
	  xScroll = document.documentElement.scrollLeft;
	} else if (document.body) {// all other Explorers
      yScroll = document.body.scrollTop;
      xScroll = document.body.scrollLeft;	
    }
    return new Array(xScroll,yScroll) 
}