var Required = new Object; 
      Required['name'] = 'Name'; 
      Required['email'] = 'Email';
      Required['phone'] = 'Phone Number'; 
	  Required['message'] = 'Questions or Comments';
      

function checkEmail(form, value){
var str = value;
var filter = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/;
if (filter.test(str)){
	return true;
}
else{
	alert("Please enter a valid email address!");
	return false;
}
}


function checkReqs(){ 
myForm = window.document.form1; 
    for (i=0;i<myForm.length;i++) { 

            var FormField = myForm.elements[i]; 
  			FormField.style.backgroundColor="";
            if (Required[FormField.name] && FormField.value == '') { 
              var Warning = Required[FormField.name]+' is a required field!';
              alert(Warning); 
              FormField.style.backgroundColor="#FFB0B0";
			  FormField.focus(); 
              return false; 
           }  
	 } 
return true;
} 

function isNumeric(form, value){
var number = value;
var filter = /[0-9]$/;
if (filter.test(number) || number == ''){

return true;
}
else{
	alert("Please enter a valid number!");
	FormField.style.backgroundColor="#FFB0B0";
    FormField.focus();
	return false;
}
}
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 ValidateForm(){
	var emailID=document.frmSample.txtEmail
	
	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
	}
	return true
 }

function clearDefault(clear) {
  if (clear.defaultValue==clear.value) clear.value = ""
}