function preview_image(img_src) {
pic = new Image();
pic.src = img_src;
setTimeout('view_image(pic.src, pic.width, pic.height);', 500);
}
function view_image(img_src, img_width, img_height){
win_top = Math.abs(screen.availHeight/4);
win_left = Math.abs(screen.availWidth/4);
win_top = 70;
win_left = 70;
if (img_width>screen.availWidth-150 || img_width==0) {
win_width = screen.availWidth-150;
} else {
win_width = img_width+20;
}
if (img_height>screen.availHeight-150 || img_height==0) {
win_height = screen.availHeight-150;
} else {
win_height = img_height+20;
}
//alert(win_width + 'x' + win_height);
photoWindow = window.open('', '', "resizable=yes,top=" + win_top + ',left=' + win_left + ",width="+win_width+',height='+win_height+",status=0,menubar=0,toolbar=0,scrollbars=yes");
photoWindow.document.write('');
photoWindow.document.write(''+img_src+'');
photoWindow.document.write('');
//photoWindow.document.write('function _CloseOnEsc(keyCode) {if (keyCode == 27) {window.close();return;}}');
photoWindow.document.write('document.onkeypress = function CloseOnEsc(key) { if(document.all) { var keyCode = window.event.keyCode; } else { if (key.which == 0) {window.close();return;} } if (keyCode == 27) {window.close();return;} }');
//photoWindow.document.write('document.body.onkeypress = _CloseOnEsc;');
//window.event.keyCode
//onKeyPress="javascript:_CloseOnEsc()"
photoWindow.document.write('');
photoWindow.document.write('');
photoWindow.document.write('
1) && (img_height>1) ) {
photoWindow.document.write('width="'+img_width+'" height="'+img_height+'"');
}
photoWindow.document.write(' border=0>');
photoWindow.document.write('');
photoWindow.document.bgColor="#f0f0f0";
photoWindow.document.close()
}