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 ID")
		   return false
		}

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

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

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

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

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail ID")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }
		 
 		 return true					
	}
	
		      function isNumberKey(evt)
      {
         var charCode = (evt.which) ? evt.which : event.keyCode
         if (charCode > 31 && (charCode < 48 || charCode > 57))
            return false;

         return true;
      }


function ValidateForm(){
	var name=document.elform.name
	var emailID=document.elform.email
	var Phone=document.elform.phone1
	var Phone=document.elform.phone2
	var Phone=document.elform.phone3
	

	if ((name.value==null)||(name.value=="")){
		alert("Please Enter your name")
		name.focus()
		return false
	}

	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email ID")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	

		if (document.elform.phone1.value.length < 3) {
		alert("Please enter your correct number.");
		return false;
	}
	
		if (document.elform.phone2.value.length < 3) {
		alert("Please enter your correct number.");
		return false;
	}
	
		if (document.elform.phone3.value.length < 4) {
		alert("Please enter your correct number.");
		return false;
	}
	

	return true
 }