function gallery(id)
	{
		if(id==1){
					document.getElementById("bigimage").style.background = "url(../images/volcanoes/kilauea_volcano_eruption.jpg)";
					
										}
		if(id==2){
					document.getElementById("bigimage").style.background = "url(../images/volcanoes/cinder_cones_at_mauna_kea.jpg)";
					
					}
		if(id==3){
					document.getElementById("bigimage").style.background = "url(../images/volcanoes/haleakala_national_park.jpg)";
					
					}
		if(id==4){
					document.getElementById("bigimage").style.background = "url(../images/volcanoes/kilauea_volcano.jpg)";
					
					}
		if(id==5){
					document.getElementById("bigimage").style.background = "url(../images/volcanoes/lava_steam.jpg)";
					
					}
		if(id==6){
					document.getElementById("bigimage").style.background = "url(../images/volcanoes/volcanic_lava_at_mauna_loa.jpg)";
					
					}
					
	
	
	}