<!--

if(document.images)
          {	rollover1 = new Image;
           rolloff1 = new Image;
           rollover1.src = "images/nav/seiapproach_over.gif";
           rolloff1.src =  "images/nav/seiapproach_off.gif";	}
           
          {	rollover2 = new Image;
           rolloff2 = new Image;
           rollover2.src = "images/nav/services_over.gif";
           rolloff2.src =  "images/nav/services_off.gif";	}
           
          {	rollover3 = new Image;
           rolloff3 = new Image;
           rollover3.src = "images/nav/clients_over.gif";
           rolloff3.src =  "images/nav/clients_off.gif";	}
           
          {	rollover4 = new Image;
           rolloff4 = new Image;
           rollover4.src = "images/nav/contact_over.gif";
           rolloff4.src =  "images/nav/contact_off.gif";	}
           
	function image1_rollover() 
      { if(document.images) document.images["btn1"].src = rollover1.src; }
	function image1_rolloff()
      { if(document.images) document.images["btn1"].src = rolloff1.src; }
          
	function image2_rollover() 
      { if(document.images) document.images["btn2"].src = rollover2.src; }
	function image2_rolloff()
      { if(document.images) document.images["btn2"].src = rolloff2.src; }   
           
	function image3_rollover() 
      { if(document.images) document.images["btn3"].src = rollover3.src; }
	function image3_rolloff()
      { if(document.images) document.images["btn3"].src = rolloff3.src; }
          
	function image4_rollover() 
      { if(document.images) document.images["btn4"].src = rollover4.src; }
	function image4_rolloff()
      { if(document.images) document.images["btn4"].src = rolloff4.src; }             
           
// -->