function VerticalSkip(dim) {
   document.write("<br><img class='"+dim+"' src='transdot.gif'><br>"); 
}

function PrimaHomeUrl() {
   var HomeUrl="http://alnitak.u-strasbg.fr/Prima" ; 
   return HomeUrl; 
}

function PrimaCgi(Url) {
   var CgiUrl=PrimaHomeUrl()+"/cgi-bin/"+Url ; 
   return CgiUrl; 
}

function OpenPrimaUrl(Url) {
   var AbsUrl=PrimaHomeUrl()+"/"+Url ;
   window.open(AbsUrl,"_self");
}

function AskForUploadButton(Num) {
   var Ici=document.location; 
   var Url=PrimaCgi("UploadForm.tcl")
   document.write("<form name='UpLoadButton' method='post' action='"+Url+"'>"); 
   document.write("   <input name='AskingNum' type='hidden' value='"+Num+"'/>");
   document.write("   <input name='AskingUrl' type='hidden' value='"+Ici+"'/>");
   document.write("   <input type='submit' value='AskForUpload' background='green'/>");
   document.write("</form>");
}