function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}

function setmenucss(name,num,rule){
    string = "<style type='text/css'> ."+name+"1 #"+name+"1";
    for(i=2;i<=num;i++){
        string+=", ."+name+i+" #"+name+i;
    }
    string+=rule+"</style>";
    $(string).appendTo("head");
    
    
}


$(document).ready(function() {
    
  externalLinks();
  
  $('.backtotop').click(function () {
			$('body,html').animate({
				scrollTop: 0
			}, 500);
			return false;
		});
  
  $('img').bind('contextmenu', function(e){
    return false;
    
}); 
  
  
  
  
});