@media screen and (min-width: 0px) and (max-width: 919px) { 
	#header {  background: url(images/header_610_apr1.jpg);  }
	}
	
@media screen and (min-width: 920px) and (max-width: 1239px) {
	#header { background: url(images/header_897_apr1.jpg);  }	
	}
	
@media screen and (min-width: 1240px) {
	#header {  background: url(images/header_1200_apr1.jpg);   }
	}