// JavaScript Document

function bt_about_out(){        
	document.getElementById("bt_about").src = "images/but_about_off.gif";    
}      
function bt_about_over(){        
	document.getElementById("bt_about").src = "images/but_about_over.gif";    
}
function bt_about_select(){        
	document.getElementById("bt_about").src = "images/but_about_arrow.gif";    
}
function bt_contact_out(){        
	document.getElementById("bt_contact").src = "images/but_contact_off.gif";    
}      
function bt_contact_over(){        
	document.getElementById("bt_contact").src = "images/but_contact_over.gif";    
}
function bt_contact_select(){        
	document.getElementById("bt_contact").src = "images/but_contact_arrow.gif";    
}
function bt_work_out(){        
	document.getElementById("bt_work").src = "images/but_work_off.gif";    
}      
function bt_work_over(){        
	document.getElementById("bt_work").src = "images/but_work_on.gif";    
}
function bt_work_select(){        
	document.getElementById("bt_work").src = "images/but_work_arrow.gif";    
}


function bt_view_text_out(){        
	document.getElementById("bt_view_text").src = "images/bt_view_text_off.gif";    
}      
function bt_view_text_over(){        
	document.getElementById("bt_view_text").src = "images/bt_view_text_on.gif";    
}

function bt_view_image_out(){        
	document.getElementById("bt_view_image").src = "images/bt_view_image_off.gif";    
}      
function bt_view_image_over(){        
	document.getElementById("bt_view_image").src = "images/bt_view_image_on.gif";    
}