function isEmail(objField){
	if(objField.value.length > 0){
		if(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(objField.value)){
			return true;
		}
	}
	alert("Invalid E-mail Address! Please re-enter.");
	objField.select();
	return false;
}
function trim(str){
return str.replace(/^\s+|\s+$/g,''); }

function validateCost(Form)
	{
	    
		
		 if(trim(Form.txtName.value)=="") {
			alert("Please enter your name");
			Form.txtName.focus();
			return false;
		}
		else if(trim(Form.txtEmail.value)=="") {
			alert("Please enter your email ID");
			Form.txtEmail.focus();
			return false;
		}
		else if(isEmail(Form.txtEmail)==false) {
			Form.txtEmail.focus();
			return false;
		}
		else if(trim(Form.txtPhone.value)=="") {
			alert("Please enter your phone No.");
			Form.txtPhone.focus();
			return false;
		}
		else if(trim(Form.txtFax.value)=="") {
			alert("Please enter fax No.");
			Form.txtFax.focus();
			return false;
		}
		
		else if(trim(Form.txtStreet.value)=="") {
			alert("Please enter your street name");
			Form.txtStreet.focus();
			return false;
		}
		else if(trim(Form.txtCity.value)=="") {
			alert("Please enter your city");
			Form.txtCity.focus();
			return false;
		}
		else if(trim(Form.txtCountry.value)=="") {
			alert("Please enter your country");
			Form.txtCountry.focus();
			return false;
		}
		else if(trim(Form.txtMessage.value)=="") {
			alert("Please enter your message");
			Form.txtMessage.focus();
			return false;
		}
		
	}