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 Email Address")
		   return false
		}

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

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

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

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

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid Email Address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid Email Address")
		    return false
		 }

 		 return true					
}

function check_number(num_str){
		
	var re = new RegExp(/[a-zA-Z]/);
	if (num_str.value.match(re)) {
    	return false
  	}else{
    	return true
  	}
		
}

function check_alph(num_str1){
		
	var rex = new RegExp(/[0-9]/);
	if (num_str1.value.match(rex)) {
    	return false
  	}else{
    	return true
  	}
		
}

function validate_form(){
	//Form Variables
	var mem_contact_name=document.web_form.mem_contact_name
	var member_name=document.web_form.member_name
	var member_address=document.web_form.member_address
	var member_city=document.web_form.member_city
	var member_state=document.web_form.member_state
	var member_zip=document.web_form.member_zip
	var member_phone=document.web_form.member_phone
	var member_email=document.web_form.member_email
	var member_password=document.web_form.member_password
	
	if((mem_contact_name.value==null)||(mem_contact_name.value=="")){
		alert("Invalid Contact Name")
		mem_contact_name.value=""
		mem_contact_name.focus()
		return false
	}

	if((member_name.value==null)||(member_name.value=="")){
		alert("Invalid Business Name")
		member_name.value=""
		member_name.focus()
		return false
	}

	if((member_address.value==null)||(member_address.value=="")){
		alert("Invalid Address")
		member_address.value=""
		member_address.focus()
		return false
	}
	
	if((member_city.value==null)||(member_city.value=="")||(check_alph(member_city)==false)){
		alert("Invalid City")
		member_city.value=""
		member_city.focus()
		return false
	}

	if((member_state.value==null)||(member_state.value=="")||(check_alph(member_state)==false)){
		alert("Invalid State")
		member_state.value=""
		member_state.focus()
		return false
	}

	if((member_zip.value==null)||(member_zip.value=="")||(check_number(member_zip)==false)||(member_zip.value.length<5)){
		alert("Invalid Zip")
		member_zip.value=""
		member_zip.focus()
		return false
	}

	if((member_phone.value==null)||(member_phone.value=="")||(check_number(member_phone)==false)||(member_phone.value.length<10)){
		alert("Invalid Phone Number")
		member_phone.value=""
		member_phone.focus()
		return false
	}

	if (echeck(member_email.value)==false){
		member_email.value=""
		member_email.focus()
		return false
	}

	if((member_password.value==null)||(member_password.value=="")){
		alert("Invalid Password")
		member_password.value=""
		member_password.focus()
		return false
	}
	
	return true
 }