function gDialog(op,top,color){
if(top == null){top = 100;}
if(color == null){color = '#000';}
$(op).css({'position':'absolute','left':'50%','top':$(window).scrollTop()+top,'z-index':10000,'margin-left':-($(op).width()/2)}).show();
$('body').append('<div class="gDialogZ" style="position:fixed;_position:absolute; left:0; top:0; width:100%; height:100%; background:'+color+';filter:Alpha(opacity=70);opacity:0.7; z-index:999;"></div>')
$('.gDialogZ').css({'height':$(document).height()});
}
function gDialogClose(op){
$(op).fadeOut();
$('.gDialogZ').remove();
}