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 isPhoneNumber(str){
		 var stripped = str.replace(/[\(\)\.\-\ ]/g, '');
   			 if (isNaN(parseInt(stripped))) {
        		alert("The phone number contains illegal characters. \n It must be numeric")
				return false
    		}
		return true
 		}

function formCheck(){
var Name=document.send_email.fullname
var Email=document.send_email.email
var Telephone=document.send_email.contact
var Message=document.send_email.message



if((Name.value==null)||(Name.value=="")){
alert("Please enter your name");
Name.focus()
return false
}
if((Email.value==null)||(Email.value=="")){
alert("Please enter your Email");
Email.focus()
return false
}
if (echeck(Email.value)==false){
		Email.value=""
		Email.focus()
		return false
	}
if((Telephone.value==null)||(Telephone.value=="")){
alert("Please enter your Contact Number");
Telephone.focus()
return false
}

if (isPhoneNumber(Telephone.value)==false){
		Telephone.value=""
		Telephone.focus()
		return false}

if((Message.value==null)||(Message.value=="")){
alert("Please enter your questions and suggestions");
Message.focus()
return false
}


}