ns4 = (document.layers)? true:false;
ie4 = (document.all)? true:false;
sp4 = (document.getElementsByTagName)? true:false;


function hide(id) {
        if (ns4) document.layers[id].visibility = "hide"
        else if (ie4) document.all[id].style.visibility = "hidden"
        else if (sp4) document.getElementsByTagName("div")[id].style.visibility = "hidden"
}

function show(id) {
        if (ns4) document.layers[id].visibility = "show"
        else if (ie4) document.all[id].style.visibility = "visible"
        else if (sp4) document.getElementsByTagName("div")[id].style.visibility = "visible"
}


function finestra_nova(nom){
		window.open(nom + location.search,'wnova3','scrollbars=1,status=0,toolbar=0,resizable=1,width=600,height=400')
	}

function finestra_nova_tamany(nom,ample,alt){
		window.open(nom,'citrix','scrollbars=0,status=0,toolbar=0,resizable=0,width='+ample+',height='+alt)
		//window.open(nom,'citrix','scrollbars=0,status=0,toolbar=0,resizable=0,width=800,height=600')
	}
	
function finestra_novetat(nom){
		window.open(nom + location.search,'wnova1','scrollbars=1,status=0,toolbar=0,resizable=1,top=150,left=150,width=350,height=250')
	}
	
function tanca_finestra(nom){
		opener.location.href=nom;
		self.close();
	}

function finestra_nova_pers(nom){
		window.open(nom + location.search,'wnova3','scrollbars=0,status=0,toolbar=0,resizable=0,top=150,left=150,width=570,height=300')
	}
	
function obre(URLnova){
				URL=top.location.href;
				URL2= URLnova + '&urlant=' + URL 
				top.location.href=URL2;
	}
function comprovacorreu (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("El correu que has entrat no es correcte.")
		return false
	}

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

	if (user.match(userPat)==null) {
	    alert("El correu que has entrat no es correcte.")
    	return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
	  	for (var i=1;i<=4;i++) {
	    		if (IPArray[i]>255) {
	        		alert("El correu que has entrat no es correcte.")
				return false
		    	}
    		}
    		return true
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		alert("El correu que has entrat no es correcte.")
    	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("El correu que has entrat no es correcte.")
   	return false
	}

	if (len<2) {
   		var errStr="El correu que has entrat no es correcte."
   		alert(errStr)
   		return false
	}

	return true;
	}


function metadades(nom){
		window.open(nom,'wnova','scrollbars=0,status=0,toolbar=0,resizable=0,width=475,height=340,left=200,top=50')
	}

function metadades2(nom){
		window.open(nom,'wnova','scrollbars=0,status=0,toolbar=0,resizable=0,width=475,height=400,left=200,top=50')
	}	
function editar(nom){
		window.open(nom,'wnova3','scrollbars=1,status=1,toolbar=1,location=yes,resizable=1,width=800,height=600,left=200,top=50')
	}
function finestra_formulari(nom){
		window.open(nom,'wnova4','scrollbars=1,status=0,toolbar=0,resizable=1,width=700,height=400')
	}