//preloading IMG's	
window.onload = function() 
{
     // counter     
     var i = 0;
     // create object     
     imageObj = new Image();
     // set image list     
     images = new Array();     
     images[0]="Images/menu_hover.png"     
     images[1]="Images/sbi_header.png"   
     // start preloading     
     for(i=0; i<images.length; i++){          
        imageObj.src=images[i];     
     }
}