// JavaScript Document
var posX, posY;
var xhr = false;

function nuevaVentana(url) {
	cierraficha();
	var ventana=window.open(url,"ventanaDocumento","location=no,menubar=yes,status=no,toolbar=no,resizable=yes,scrollbars=yes");
}

function validaforma(forma) {
	d1 = forma.diainicial.value; m1 = forma.mesinicial.value; y1 = forma.yearinicial.value ;
	d2 = forma.diafinal.value; m2 = forma.mesfinal.value; y2 = forma.yearfinal.value;
	fechaInicial =""+y1+"-";
	
	if (m1<10) {
		fechaInicial = fechaInicial + "0"+m1+"-";
	}
	else {
		fechaInicial = fechaInicial + m1+"-";
	}

	if (d1<10) {
		fechaInicial = fechaInicial +"0"+d1;
	}
	else {
		fechaInicial = fechaInicial + d1 ;
	}

    if (isDate(fechaInicial)==false){
		forma.diainicial.focus()
		return false
	}
	
	fechaFinal =""+y2+"-";
	
	if (m2<10) {
		fechaFinal= fechaFinal+ "0"+m2+"-";
	}
	else {
		fechaFinal= fechaFinal+ m2+"-";
	}

	if (d2<10) {
		fechaFinal= fechaFinal+"0"+d2;
	}
	else {
		fechaFinal= fechaFinal+ d2;
	}
	
    if (isDate(fechaFinal)==false){
		forma.diafinal.focus()
		return false
	}

	forma.fechainicial.value=fechaInicial
	forma.fechafinal.value=fechaFinal
    return true

}

/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// Declaring valid date character, minimum year and maximum year
var dtCh= "-";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)

	//var strMonth=dtStr.substring(0,pos1)
	//var strDay=dtStr.substring(pos1+1,pos2)
	//var strYear=dtStr.substring(pos2+1)
	var strYear=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strDay=dtStr.substring(pos2+1)
	
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("Error en fecha")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Seleccione un mes valido")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Seleccione un dia valido")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Seleccione un aņo valido")
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Seleccione una fecha valida")
		return false
	}
return true
}


function centraPagina() {
  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
   
  //window.alert( 'Width = ' + myWidth );
  //window.alert( 'Height = ' + myHeight );
  if( document.styleSheets ) {
  	//DOM stylesheets are available
    
  }
}

function cierraficha() {
	var fichaDoc = document.getElementById("fichadoc");
	if (fichaDoc)
		fichaDoc.style.visibility="hidden";
}

function muestraficha(ancla,resumen,evt) {
	if (!evt)
		evt = window.event;
	posX=evt.clientX;
	posY=evt.clientY;
  
	var scrOfX = 0, scrOfY = 0;
  	if( typeof( window.pageYOffset ) == 'number' ) {
    	//Netscape compliant
	    scrOfY = window.pageYOffset;
    	scrOfX = window.pageXOffset;
	} else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    	//DOM compliant
	    scrOfY = document.body.scrollTop;
    	scrOfX = document.body.scrollLeft;
    } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    	//IE6 standards compliant mode
	    scrOfY = document.documentElement.scrollTop;
    	scrOfX = document.documentElement.scrollLeft;
    }
    posX = posX + scrOfX;
	posY = posY + scrOfY;
	if (window.XMLHttpRequest) {
		xhr = new XMLHttpRequest();
	}
	else {
		if (window.ActiveXObject) {
			try {
				xhr = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e) { }
		}
	}
	if (xhr) {
		xhr.onreadystatechange=muestraContenidoFicha;
		url = ancla.href+'&resumen='+encodeURIComponent(resumen);
		//alert(url);
		xhr.open("GET",url,true);
		xhr.send(null);
	}
	else {
		 alert("Error ajax");
	}
	return false;
}

function muestraContenidoFicha() {
	var ancho = 400;
	var alto = 300;
	var fichaDoc = document.getElementById("fichadoc");
	if (xhr.readyState == 4) {
		if (xhr.status==200) {
			fichaDoc.innerHTML=xhr.responseText;	
			if (posX > ancho) {
				nuevapos=posX-ancho;
				fichaDoc.style.left=parseInt(nuevapos)+"px";	
			}
			else {
				fichaDoc.style.left=posX+"px";
			}
			alto = fichaDoc.clientHeight;
			if (posY > alto) {
				nuevapos=posY-alto;
				fichaDoc.style.top=parseInt(nuevapos)+"px";		
			}
			else {
				fichaDoc.style.top=parseInt(posY)+"px";		
			}
			fichaDoc.style.visibility="visible";
			
		}
	}
	
}