<input type="text"
id="txtEmail"
Function
echeck is used to verify if the given value is
a possible valid email address.
This
one (@), atleast one (.).
It also
makes sure that there are no spaces, extra '@'s
or a (.) just before or after the @.
It also
makes sure that there is atleast one (.) after the @.
function
eMailCheck(object,e)
var str=object.value;
if(str!="")
var at="@"
var dot="."
var lat=str.indexOf(at)
var lstr=str.length
var ldot=str.indexOf(dot)
if (str.indexOf(at)==-1)
//alert("Invalid E-mail ID")
CursorFocusSelect(object);
ShowMessage(object,"Invalid
E-mail ID","RED");
return false
else
{
ClearMessage(object);
}
if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
// alert("Invalid E-mail ID")
CursorFocusSelect(object);
ShowMessage(object,"Invalid E-mail
ID","RED");
return
false
else
{
ClearMessage(object);
}
if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
//alert("Invalid E-mail ID")
CursorFocusSelect(object);
ShowMessage(object,"Invalid E-mail
ID","RED");
return
false
else
{
ClearMessage(object);
}
if (str.indexOf(at,(lat+1))!=-1)
{
//alert("Invalid E-mail ID")
CursorFocusSelect(object);
ShowMessage(object,"Invalid E-mail
ID","RED");
return
false
}
else
{
ClearMessage(object);
}
if (str.substring(lat-1,lat)==dot
|| str.substring(lat+1,lat+2)==dot)
{
//alert("Invalid E-mail ID")
CursorFocusSelect(object);
ShowMessage(object,"Invalid E-mail
ID","RED");
return
false
}
else
{
ClearMessage(object);
}
if (str.indexOf(dot,(lat+2))==-1)
{
//alert("Invalid E-mail ID")
CursorFocusSelect(object);
ShowMessage(object,"Invalid E-mail
ID","RED");
return
false
}
else
{
ClearMessage(object);
}
if (str.indexOf("
")!=-1)
{
//alert("Invalid E-mail ID")
CursorFocusSelect(object);
ShowMessage(object,"Invalid E-mail
ID","RED");
return
false
}
else
{
ClearMessage(object);
}
return true
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