function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else var expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
//  document.write(document.cookie);
}
 
function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) 
	 return c.substring(nameEQ.length,c.length);
  }
  return null;
}



function changeFontSize(inc)
{

var p = document.getElementsByTagName('p');
  for(n=0; n<p.length; n++) {
    if(p[n].style.fontSize) {
       var size = parseInt(p[n].style.fontSize.replace("px", ""));
    } else {
       //var size = 12;
    }
    p[n].style.fontSize = inc + 'px';
   }

/*var s = document.getElementsByTagName('span');
  for(n=0; n<s.length; n++) {
    if(s[n].style.fontSize) {
       var size = parseInt(s[n].style.fontSize.replace("px", ""));
    } else {
       //var size = 12;
    }
    s[n].style.fontSize = inc + 'px';
   }
*/
/*var d = document.getElementsByTagName('div');
  for(n=0; n<d.length; n++) {
    if(d[n].style.fontSize) {
       var size = parseInt(d[n].style.fontSize.replace("px", ""));
    } else {
       //var size = 12;
    }
    d[n].style.fontSize = inc + 'px';
   }

*/
var b = document.getElementsByTagName('blockquote');
  for(n=0; n<b.length; n++) {
    if(b[n].style.fontSize) {
       var size = parseInt(b[n].style.fontSize.replace("px", ""));
    } else {
       //var size = 12;
    }
    b[n].style.fontSize = inc + 'px';
   }


var l = document.getElementsByTagName('li');
  for(n=0; n<l.length; n++) {
    if(l[n].style.fontSize) {
       var size = parseInt(l[n].style.fontSize.replace("px", ""));
    } else {
       //var size = 12;
    }
    l[n].style.fontSize = inc + 'px';
   }



createCookie("txt1", inc, 365);

}



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 E-mail address")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail address")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail address")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail address")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail address")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail address")
		    return false
		 }

 		 return true					
	}

function ValidateForm(){
	var emailID=document.form1.email
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please enter your e-mail address")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	return true
 }