<!--
/**********************************************
* Funciones javascript para el funcionamiento
* de la web.
***********************************************/

/* function openWindow():
 *	Opens a window with filename, w = width and h = height
 */
function openWindow(filename, w, h) {
	// Calculate center coordinates for window display
	var xOffset = (screen.width - w) / 2;
	var yOffset = (screen.height - h) / 2;
	window.open(filename,'','resizable=yes,scrollbars=yes,width='+w+',height='+h+',top='+yOffset+',left='+xOffset+'');
}

/* function verProducto():
 *	abre una ventana para ver una imagen de un producto, w = ancho de la imagen and h = alto de la imagen
 */
function verProducto(filename, w, h) {
	// Ponemos una ventana con la foto
	var ancho = parseInt(w) + 50;//100;
	var alto = parseInt(h) + 75;//100;
	if (alto > 600) {
		alto = 600;
	}
	if (ancho > 800) {
		ancho = 800;
	}
	var xOffset = (screen.width - ancho) / 2;
	var yOffset = (screen.height - alto) / 2;
	
	window.open(filename, 'PRODUCTO', 'resizable=yes,scrollbars=yes,statusbar=no,width=' + ancho + ',height=' + alto+',top='+yOffset+',left='+xOffset+'');
}

/* function printWindow():
 *	Opens a window for printing purposes
 */
function printWindow(filename, w, h) {
	// Calculate center coordinates for window display
	var xOffset = (screen.width - w) / 2;
	var yOffset = (screen.height - h) / 2;
	window.open(filename, 'printWindow', 'resizable=yes, scrollbars=yes, width='+w+', height='+h+', screenX='+xOffset+', screenY='+yOffset+', top='+yOffset+', left='+xOffset+'');
}

/* function emailCheck
 * Checks that 'emailStr' is a valid email format.
 */
function emailCheck (emailStr) {
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")

	var matchArray = emailStr.match(emailPat)
	if (matchArray == null) {
		alert(wrong_email1)
		return false
	}

	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null) {
		alert(wrong_email2)
		return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		for (var i=1; i<=4; i++) {
			if (IPArray[i]>255) {
				alert(wrong_ip)
				return false
			}
		}
		return true
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		alert(wrong_domain)
		return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length < 2 || domArr[domArr.length-1].length > 3) {
		alert(wrong_top_level)
		return false
	}

	if (len < 2) {
		var errStr=wrong_hostname
		alert(errStr)
		return false
	}

	return true;
}
//-->