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){
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false
		 }

		 if (str.indexOf(" ")!=-1){
		    return false
		 }

 		 return true					
	}

function validate_form(){
	valid = true;
	
	var emailID=document.NewMongoose.email;

	if ((document.NewMongoose.name.value=="")||(document.NewMongoose.name.value==null)||document.NewMongoose.name.value=="Name")
	{
		alert ("Please enter your name");
		valid = false;
		return false;
	}
		if (((document.NewMongoose.email.value=="")||(document.NewMongoose.email.value==null)||(document.NewMongoose.email.value=="Email Address"))&&((document.NewMongoose.telephone.value=="")||(document.NewMongoose.telephone.value==null)||(document.NewMongoose.telephone.value=="Telephone")))
		{
		alert("Please enter a valid E-Mail address or Telephone Number")
		valid = false
		return false
		}
	
	if(document.NewMongoose.telephone.value=="Telephone"){
		if (echeck(emailID.value)==false){
		alert("Please enter a valid E-Mail Address")
		emailID.value=""
		emailID.focus()
		return false
	}
	}
	
	if ((document.NewMongoose.message.value=="")||(document.NewMongoose.message.value==null)||document.NewMongoose.message.value=="Message")
	{
		alert ("Please enter a message");
		valid = false;
		return false;
	}
	return valid
	return true
 }