function aIMG(I,W,H,alt){
escala=1;
nW = window.open("","","width="+(escala*W)+",height="+(escala*H)+",left="+(screen.width-(escala*W))/2+",top="+(screen.height-(escala*H)-50)/2+",resizable=yes");
nW.document.open();
nW.document.write(""+alt+"");
nW.document.write("");
nW.document.write("![\""+alt+"\"](../../js//""+I+"/")
");
nW.document.write("");
nW.document.close();
nW.focus();
}