function ChangeBack(ImageFile) {
    var preImg = document.getElementById('top_bar');
    preImg.style.backgroundImage = 'url(' + ImageFile + ')';    
	preImg.style.backgroundPosition = '-50%';
}

function show_pic(pid,psource){
 newWindow = window.open("bigpic.php?id=" + pid + "&m=" + psource, "zoom", "width=640,height=350,statusbar=no,menubar=no,scrollbar=no,toolbar=no,locationbar=no,directories=no,resizable=no");
		newWindow.focus();
}


function resizer(x,y){
        if (navigator.appName == 'Microsoft Internet Explorer'){
                newWindow.resizeTo(x+10,y+29);
        }else{
                if(navigator.appVersion.substring(0,1) < "5"){
                        newWindow.resizeTo(x,y);
                }else{
                        newWindow.resizeTo(x+8,y+28);
                }
        }
        movX=(screen.availWidth/2)-(x/2);
        movY=(screen.availHeight/2)-(y/2);
        newWindow.moveTo(movX,movY);

}