if(document.images)
{
	btn_1_off = new Image();
	btn_1_off.src = "../images/museum/btn_1_off.gif";
	btn_1_on = new Image();
	btn_1_on.src = "../images/museum/btn_1_on.gif";
			
	btn_2_off = new Image();
	btn_2_off.src = "../images/museum/btn_2_off.gif";
	btn_2_on = new Image();
	btn_2_on.src = "../images/museum/btn_2_on.gif";
			
	btn_3_off = new Image();
	btn_3_off.src = "../images/museum/btn_3_off.gif";
	btn_3_on = new Image();
	btn_3_on.src = "../images/museum/btn_3_on.gif";
	
	btn_arrow_up_off = new Image();
	btn_arrow_up_off.src = "../images/museum/btn_scroll_arrow_up_off.gif";
	btn_arrow_up_on = new Image();
	btn_arrow_up_on.src = "../images/museum/btn_scroll_arrow_up_on.gif";
	
	btn_arrow_dn_off = new Image();
	btn_arrow_dn_off.src = "../images/museum/btn_scroll_arrow_dn_off.gif";
	btn_arrow_dn_on = new Image();
	btn_arrow_dn_on.src = "../images/museum/btn_scroll_arrow_dn_on.gif";
	
	btn_grandave_off = new Image();
	btn_grandave_off.src = "../images/museum/btn_grandave_off.gif";
	btn_grandave_on = new Image();
	btn_grandave_on.src = "../images/museum/btn_grandave_on.gif";
	
	btn_geffen_off = new Image();
	btn_geffen_off.src = "../images/museum/btn_geffen_off.gif";
	btn_geffen_on = new Image();
	btn_geffen_on.src = "../images/museum/btn_geffen_on.gif";
	
	btn_pac_off = new Image();
	btn_pac_off.src = "../images/museum/btn_pac_off.gif";
	btn_pac_on = new Image();
	btn_pac_on.src = "../images/museum/btn_pac_on.gif";
	
	btn_diggallery_off = new Image();
	btn_diggallery_off.src = "../images/museum/btn_diggallery_off.gif";
	btn_diggallery_on = new Image();
	btn_diggallery_on.src = "../images/museum/btn_diggallery_on.gif";
	
	scroll_tab_off = new Image();
	scroll_tab_off.src = "../images/museum/scroll_tab_off.gif";
	scroll_tab_on = new Image();
	scroll_tab_on.src = "../images/museum/scroll_tab_on.gif";
}
		
function chgImg(imgField,newImg)
{
	if(document.images)
		 eval("document."+imgField+".src="+newImg+".src");
}
		
function chgAll(status)
{
	for(i=1;i<=3;i++)
	{
		chgImg('btn'+i,'btn_'+i+'_'+status);
	}
}