if(document.images)
	{
		p1 =  new Image();
		p1.src = gSiteURL +"graphics/index_over_17.gif";
		
		p2 =  new Image();
		p2.src = gSiteURL +"graphics/index_over_18.gif";
		
		p3 =  new Image();
		p3.src = gSiteURL +"graphics/index_over_19.gif";
		
		p4 =  new Image();
		p4.src =gSiteURL + "graphics/index_over_20.gif";
		
	}