function navfun(which,total)
	{
		//alert(tppublic);
		$("#nav"+which).attr("src",tppublic+"_images/index-0"+which+"b.gif"); 
		var i=0;
		for( $i=0;i<=total;i++ ){
			if ( i!=which ){
				$("#nav"+i).attr("src",tppublic+"_images/index-0"+i+"a.gif"); 
			}
		}
		$("#nav_div img").not($("#nav"+which)).hover(
			function () {
				var id = this.id.replace("nav","");
				$("#nav"+id).attr("src",tppublic+"_images/index-0"+id+"b.gif");
			},
			function () {
				//$("#nav_div div").removeClass("hover");
				var id = this.id.replace("nav","");
				$("#nav"+id).attr("src",tppublic+"_images/index-0"+id+"a.gif"); 
			}
		); 
	}