//Определение браузера
opera = (window.opera)? true : false;	
dom = (document.getElementById)? true : false;
ie4 = (document.all && !dom)? true : false;
nn4 = (document.layers)? true : false;


function act_submit(i_id,id) {
if(dom){
	def=document.getElementById(i_id);
	subm=document.getElementById(id);
	if(def.value.length>=0)
     subm.disabled=false; 
	else
     subm.disabled=true; 
	} 
	 
}


function email (login, serv)
{
	if(serv=="") serv="sherpa.ru";
	eml = login +  "@" + serv;
	return eml;
}


function mylo (login, serv)
{
 document.write (email(login, serv));
}

function namylo (login, serv, subj)
{
eml = "mailto:" + email(login, serv);
re= /\s/;
while(subj.search(re)>0)
subj=subj.replace(re, "%20");

if (subj != "") eml += "?subject=" + subj;
window.location.href = eml;
}


function zoomImg(id,w,h) 
{
 win_h=h+30;
 win_w=w;
 win=window.open('/info/img.php?id='+id,'img','scrollbars=0,resizable=1,width='+win_w+', height='+win_h+',toolbar=0');
 win.window.focus();
}