function checkEmail(obj){
    var str=obj.value;
    if(str=='') return true;
    if (/^([\w-~_]+\.)*[\w-~_]+@([\w-_]+\.){1,3}\w{2,4}$/.test(str))	return true;

alert("Неправильный e-mail адрес");
obj.focus();
return false;
}


function zoom(name,format){
        var p=window.open('/zoom.plx?n='+name+'&f='+format,'preview_window',"width=10,height=10,top=0,left=0,location=0,toolbar=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1,fullscreen=0");
        if(p)p.focus();
	return false;
}
function mm(url){
    var img=new Image;
    img.src=url;
    return img;
}



var top_r=mm("/i/tech/top_r.gif");
var top_w=mm("/i/tech/top_w.gif");
var back_r=mm("/i/tech/back_r.gif");
var back_w=mm("/i/tech/back_w.gif");
var home_r=mm("/i/tech/home_r.gif");
var home_w=mm("/i/tech/home_w.gif");
var mail_r=mm("/i/tech/mail_r.gif");
var mail_w=mm("/i/tech/mail_w.gif");
var lab_b=mm("/i/tech/lab_b.gif");
var lab_w=mm("/i/tech/lab_w.gif");
var books_b=mm("/i/tech/books_b.gif");
var books_w=mm("/i/tech/books_w.gif");
var tv_b=mm("/i/tech/tv_b.gif");
var tv_w=mm("/i/tech/tv_w.gif");
var articles_b=mm("/i/tech/articles_b.gif");
var articles_w=mm("/i/tech/articles_w.gif");
var links_b=mm("/i/tech/links_b.gif");
var links_w=mm("/i/tech/links_w.gif");
var gallery_b=mm("/i/tech/gallery_b.gif");
var gallery_w=mm("/i/tech/gallery_w.gif");
var search_b=mm("/i/tech/search_b.gif");
var search_w=mm("/i/tech/search_w.gif");
var guest_b=mm("/i/tech/guest_b.gif");
var guest_w=mm("/i/tech/guest_w.gif");

function flipBtn(btnName,imgBtn){
  if(document.images){document[btnName].src=eval(imgBtn+".src");}
  return true;
}

function mov(name){
var obj=document.getElementById("m_"+name);
obj.src='/images/pg/l'+name+'.gif';
}

function mout(name){
var obj=document.getElementById("m_"+name);
obj.src='/images/pg/n'+name+'.gif';
}


function nothing(){
}

function MM_swapImgRestore() { 
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { 
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { 
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.subsTRing(p+1)].document; n=n.subsTRing(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
}

function MM_swapImage() { 
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}