var imgCounter=1;
var t=0;
// when document is ready load this function
jQuery(document).ready(function() {
        t= setInterval( "slideShow()", 10000 );
});

function slideShow()
{
        jQuery("#image_"+imgCounter).fadeOut(3000, function(){//alert(imgCounter); 
       imgCounter++;
        if(imgCounter==4)
            {
            	imgCounter=1;
            }
		jQuery("#image_"+imgCounter).fadeIn(2000);
        });

}