/* Script to make sure name and last name are entered and to validate the EMail address Smith and Heinle-->

*/

		function validEmail(email) {
			invalidChars = " /:,;"
	
			if (email == "") {
				return false
			}
			for (i=0; i<invalidChars.length; i++) {
				badChar = invalidChars.charAt(i)
				if (email.indexOf(badChar,0) > -1) {
					return false
				}
			}
			atPos = email.indexOf("@",1)
			if (atPos == -1) {
				return false
			}
			if (email.indexOf("@",atPos+1) > -1) {
				return false
			}
			periodPos = email.indexOf(".",atPos)
			if (periodPos == -1) {
				return false
			}
			if (periodPos+3 > email.length)	{
				return false
			}
			return true
		}
		
		

		function estaBien(form) {


			/* asegurarse que dan Name 
			*/
			
				hayContact=form.name
				if (form.name.value =="") {
				alert("Please, enter your Name.")
				form.name.focus()
				form.name.select()
				return false
				
			}


			/* asegurarse que dan Company Name 
			*/
			
				hayContact=form.company
				if (form.company.value =="") {
				alert("Please, enter the name of your company.")
				form.company.focus()
				form.company.select()
				return false
				
			}



			
			
			
			


			/* asegurarse que dan valid Phone Number 
			*/
			
				hayContact=form.phone
				if (form.phone.value =="") {
				alert("Please, enter your phone number.")
				form.phone.focus()
				form.phone.select()
				return false
				
			}
			
			
			
			
			
			
			
			
			/* asegurarse que dan email 
			*/
			
				hayContact=form.email
				if (form.email.value =="") {
				alert("Please, enter your E-mail address.")
				form.email.focus()
				form.email.select()
				return false
				
			}
			
			
			
			
			/* asegurarse que dan userName 
			*/
			
				hayContact=form.userName
				if (form.userName.value =="") {
				alert("Please, enter a User Name you will like to use to access online materials.")
				form.userName.focus()
				form.userName.select()
				return false
				
			}
			
			
			
			
			
			


				
				
			if (!validEmail(form.email.value)) {
				alert("Sorry, it seems you have written down an invalid email address.\n\n\n Please check it and try again.")
				form.email.focus()
				form.email.select()
				return false
			}
			
			
			return true
		}