function checkmail(cnt){
	addr = cnt.value;
	if(addr=="") return true;
	if(addr.indexOf("@") < 1 || addr.lastIndexOf(".") < 1){
		alert("Please enter valid email address");
		cnt.focus();
		return false;
		}
	if(addr.indexOf("@") > addr.lastIndexOf(".")){
		alert("Please enter valid email address");
		cnt.focus();
		return false;
		}
	if(addr.indexOf("@")+1 == addr.lastIndexOf(".") || addr.lastIndexOf(".") == addr.length-1){
		alert("Please enter valid email address");
		cnt.focus();
		return false;
		}
return true;
}


function isPhone(cntrl)
{
msg="Please enter valid phone number.";
phnum="";
if(arguments.length==2)
msg=arguments[1];
num=0;
for(i=0;i<cntrl.value.length;i++)
	{
    if(!isNaN(cntrl.value.charAt(i)) && cntrl.value.charAt(i)!=" ")
	phnum+=cntrl.value.charAt(i);
    }
if(phnum.length<8)
	{
    alert(msg);
    cntrl.focus();
    return false;
    }
cntrl.value=phnum;
return true;
}

function onlychar()
{
if(arguments.length==0)
 {
 if((event.keyCode > 47) && (event.keyCode < 58))
	{
	event.keyCode=0;
	return false;
    }

 }
else{
      inputStr=arguments[0].value;
      for( var i = 0; i < inputStr.length; i++ )
      {
          var charone = inputStr.substring( i, i + 1 );
if( !( ( charone >= "a" && charone <= "z" ) ||( charone >= "A" && charone <= "Z" ) || (charone=="'") ) )
	{
alert( arguments[1] );
arguments[0].focus();
return false;
}
}
}
return true;
}


function isempty(cntrl,errmsg)
{
if(cntrl.value=="")
{
alert(errmsg);
cntrl.focus();
return true;
}
return false;
}