function preloader() 
{

var i = 0;  

imageObj = new Image();
images = new Array();     
images[0]="graphics/elements/menu_mo.gif"  
images[1]="graphics/elements/go_mo.gif"   
images[2]="graphics/elements/gosff_mo.gif"  
images[3]="graphics/elements/gosaf_mo.gif"     
for(i=0; i<=3; i++)      
{imageObj.src=images[i];}

}