/* Comprova si una direcció de correu electrònic te un format vàlid*/
function isEmailAddress(theElement) {
   var s = theElement;
   var filter=/^[A-Za-z][A-Za-z0-9\\.]*@[A-Za-z0-9_]+\.[A-Za-z0-9_.]+[A-za-z]$/;
   if (s=="") return false;
   if (s.length == 0 ) return false;
   if (filter.test(s)) return true;
   else return false;
}

function putFont(sizeper){
   fontByTag('a',sizeper);
   fontByTag('p',sizeper);
   fontByTag('span',sizeper);
   fontByTag('td',sizeper);
   fontByTag('div',sizeper);
}

function fontByTag (tag,size) {
	var divElements = document.getElementsByTagName(tag); 
	for (i=0;i<divElements.length;i++){
		obj=divElements[i];
		if (obj.style.fontSize==""){
			obj.style.fontSize="100%";
		}	
		valor=11+size;
		obj.style.fontSize=valor+"px";
		if(size==0){
		obj.style.fontSize="";
		}
	}		
}

function getCookieVal (offset) {
 var endstr = document.cookie.indexOf (";", offset);
 if (endstr == -1)
 endstr = document.cookie.length;
 return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
 var arg = name + "=";
 var alen = arg.length;
 var clen = document.cookie.length;
 var i = 0;
while (i < clen) {
 var j = i + alen;
 if (document.cookie.substring(i, j) == arg)
 return getCookieVal (j);
 i = document.cookie.indexOf(" ", i) + 1;
 if (i == 0) break;
 }
 return null;
}

function SetCookie (name,value,expires,path,domain,secure) {
 document.cookie = name + "=" + escape (value) +
 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 ((path) ? "; path=" + path : "") +
 ((domain) ? "; domain=" + domain : "") +
 ((secure) ? "; secure" : "");
}

function DeleteCookie (name,path,domain) {
 if (GetCookie(name)) {
 document.cookie = name + "=" +
 ((path) ? "; path=" + path : "") +
 ((domain) ? "; domain=" + domain : "") +
 "; expires=Thu, 01-Jan-70 00:00:01 GMT";
 }
}

function setActiveStyleSheet(title) {
   var i, a, main;
   for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
     if(a.getAttribute("rel").indexOf("style") != -1
        && a.getAttribute("title")) {
       a.disabled = true;
       if(a.getAttribute("title") == title) a.disabled = false;
     }
   }
}

function imprimir(){
//document.getElementById("linkPrint")[].style.display='none'
window.print()
//document.getElementById("linkPrint")[].style.display='inline'
}


/* Retorna un objecte etiqueta a partir de 
   l'identificador depenent del navegador */
function getObj(name) {
  if (document.getElementById) {
this.obj= document.getElementById(name);
    this.style=document.getElementById(name).style;
this.obj.charset='UTF-8';
  }
 else if (document.all) {
    this.obj = document.all[name];
    this.style = document.all[name].style;
  }
  else if (document.layers) {
    this.obj = document.layers[name];
    this.style = document.layers[name];
  }
}


   function viewElement(element) {
	var el = new getObj(element);
	if (el.style.display=='') {
		el.style.display='none';
	}
	else {
		el.style.display=''
	}
}