function validateEvent()
{

	eventform=document.eventsform;
	eventform.events.value=trimAll(eventform.events.value);
	events=eventform.events.value;
	if(events=='')
	{
		alert("Select an Event.");
		eventform.events.focus();
		return false;
	}
	eventform.fname.value=trimAll(eventform.fname.value);
	fname=eventform.fname.value;
	if(fname=='')
	{
		alert("Enter the Name.");
		eventform.fname.focus();
		return false;
	}
	eventform.phonenumber.value=trimAll(eventform.phonenumber.value);
	phonenumber=eventform.phonenumber.value;
	if(phonenumber=='')
	{
		alert("Enter the phonenumber.");
		eventform.phonenumber.focus();
		return false;
	}
	if (isNaN(phonenumber)) 
	{
	 alert("Enter Numerics only.");
	eventform.phonenumber.focus();
	return false;
	}
	/*if(phonenumber.length < 10)
	{
	  alert("Invalid Phone number.");
		eventform.phonenumber.focus();
		return false;

	}*/

	eventform.email.value=trimAll(eventform.email.value);
	email=eventform.email.value;
	if(email=='')
	{
		alert("Enter the Email.");
		eventform.email.focus();
		return false;
	}
	if (echeck(email)==false)
	{
		eventform.email.value=""
		eventform.email.focus();
		return false
	}
	eventform.people.value=trimAll(eventform.people.value);
	people=eventform.people.value;
	if(people=='')
	{
		alert("Enter the Number of People.");
		eventform.people.focus();
		return false;
	}

	
	return true;
}

//Function for Email Validation

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 Id.")
					   return false
					}

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

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

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

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

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

function trimAll(sString)
{
	while (sString.substring(0,1) == ' ')
	{
		sString = sString.substring(1, sString.length);
	}
	while (sString.substring(sString.length-1, sString.length) == ' ')
	{
		sString = sString.substring(0,sString.length-1);
	}
	return sString;
}