function ChangeImg(sImg){document.images["ShowImg"].src=sImg;}
function isEmail(s)
{   
  if (s=="") return false;
  if(s.indexOf(" ")>0) return false;
  if(s.indexOf("@")==-1) return false;
  var i = 1;
  var sLength = s.length;
  if (s.indexOf(".")==-1) return false;
  if (s.indexOf("..")!=-1) return false;
  if (s.indexOf("@")!=s.lastIndexOf("@")) return false;
  if (s.lastIndexOf(".")==s.length-1) return false;
  var str="abcdefghikjlmnopqrstuvwxyz-@._"; 
  for(var j=0;j<s.length;j++)
	if(str.indexOf(s.charAt(j))==-1)
		return false;
   return true;
}
function GoBack(url)
{
	window.location.href=url
}

function OpenViewImgs(form_,obj,folder)
{
	var strUrl="viewimgs.php?form="+form_+"&obj="+obj+"&fder="+folder;
	window.status="Open";
	window.open(strUrl,"View","scrollbars=yes,width=650,height=400");
}
function SelectChange(obj)
{
	if(obj.options[obj.selectedIndex].value != 0) window.location.href=obj.options[obj.selectedIndex].value;
}