function trim(strText)
 {

    // this will get rid of leading spaces
    while (strText.substring(0,1) == ' ')
        strText = strText.substring(1, strText.length);

    // this will get rid of trailing spaces
    while (strText.substring(strText.length-1,strText.length) == ' ')
        strText = strText.substring(0, strText.length-1);

   return strText;

}
	function isEmpty(fname)
	{
		invalid = " ";

		flag = 1;
		for(ttt=0;ttt<fname.value.length;ttt++)
		{
			if(fname.value.charAt(ttt)!=invalid)
			{
				//alert('sdf');
				break;
			}
		}
		if(ttt==fname.value.length) flag = 0;
		if(flag==0) return true;
		if((fname.value=="") ||(fname.value==invalid))
			return true;
		else
			return false;
	}
function echeck(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 Email Address");
		   return false;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
		{
		   alert("Invalid Email Address");
		   return false;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
		{
		    alert("Invalid Email Address");
		    return false;
		}

		if (str.indexOf(at,(lat+1))!=-1)
		{
		    alert("Invalid Email Address");
		    return false;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
		 {
		    alert("Invalid Email Address");
		    return false;
		 }

		 if (str.indexOf(dot,(lat+2))==-1)
		 {
		    alert("Invalid Email Address");
		    return false;		 }

		 if (str.indexOf(" ")!=-1)
		 {
		    alert("Invalid Email Address");
		    return false;
		 }
 		 return true;
}

function isnumeric(sText)
{
   var ValidChars = "0123456789- ";
   var IsNumber=true;
   var Char;
   for (i = 0; i < sText.length && IsNumber == true; i++)
      {
      Char = sText.charAt(i);
      if (ValidChars.indexOf(Char) == -1)
         {
         IsNumber = false;
         }
      }
   return IsNumber;
}