function checkemail(){
  var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i
  var returnval=emailfilter.test(document.getElementById('email').value);
  
  if (returnval==false){
    document.getElementById('email_valid').src = 'elemgraph/!OK.gif';
  }else{
    document.getElementById('email_valid').src = 'elemgraph/OK.gif';
  }
  return returnval;
} 

var browser 		= navigator.userAgent.toLowerCase();
var isIE 				= ((browser.indexOf( "msie" ) != -1) && (browser.indexOf( "opera" ) == -1) && (browser.indexOf( "webtv" ) == -1));

function containsDOM(container, containee) {
  var isParent = false;
  do {
    if ((isParent = container == containee))
      break;
    containee = containee.parentNode;
  }
  while (containee != null);
  return isParent;
}

function checkMouseLeave(element, evt) {
  if (element.contains && evt.toElement) {
    return !element.contains(evt.toElement);
  }else if (evt.relatedTarget) {
    return !containsDOM(element, evt.relatedTarget);
  }
}
function f_scrollTop() {
	return f_filterResults (
		window.pageYOffset ? window.pageYOffset : 0,
		document.documentElement ? document.documentElement.scrollTop : 0,
		document.body ? document.body.scrollTop : 0
	);
}
function f_filterResults(n_win, n_docel, n_body) {
	var n_result = n_win ? n_win : 0;
	if (n_docel && (!n_result || (n_result > n_docel)))
		n_result = n_docel;
	return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}
function getCheckedValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}

/*********************************************************************************
*	Capture des touches clavier
*********************************************************************************/
if (document.layers) {
  document.captureEvents(Event.KEYDOWN);
  document.captureEvents(Event.KEYPRESS);
  document.captureEvents(Event.KEYUP);
}

var clavier_un = -1;
var clavier_deux = -1;

function codeTouche(e) {
  var cret;
  if (window.event) {
    if (parseInt(clavier_deux)>0) cret=clavier_deux;
    else cret=window.event.keyCode;
    if (window.event.type=="keypress") clavier_deux=window.event.keyCode;
    if (window.event.type=="keydown") clavier_deux=-1;
  } else {
    if (parseInt(clavier_deux)>0) cret=clavier_deux;
    else if ((parseInt(clavier_un)>0) && (e.which<1)) cret=clavier_un;
    else cret=e.which;
    if (e.type=="keydown") {
      clavier_un=e.which;
      clavier_deux=-1;
    }
    if (e.type=="keypress") clavier_deux=e.which;
  }
  return (parseInt(cret));
}

function toucheAlt(e) {
  if (window.event) {
    return (window.event.altKey);
  } else {
    return (e.altKey || (e.modifiers % 2));
  }
}

function toucheCtrl(e) {
  if (window.event) {
    return (window.event.ctrlKey);
  } else {
    return (e.ctrlKey || (e.modifiers==2) || (e.modifiers==3) || (e.modifiers>5));
  }
}

function toucheShift(e) {
  if (window.event) {
    return (window.event.shiftKey);
  } else {
    return (e.shiftKey || (e.modifiers>3));
  }
}



function strtr (str, from, to) {
    // http://kevin.vanzonneveld.net
    // +   original by: Brett Zamir (http://brett-zamir.me)
    // +      input by: uestla
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: Alan C
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: Taras Bogach
    // +   bugfixed by: Brett Zamir (http://brett-zamir.me)
    // +      input by: jpfle
    // +   bugfixed by: Brett Zamir (http://brett-zamir.me)
    // -   depends on: krsort
    // -   depends on: ini_set
    // *     example 1: $trans = {'hello' : 'hi', 'hi' : 'hello'};
    // *     example 1: strtr('hi all, I said hello', $trans)
    // *     returns 1: 'hello all, I said hi'
    // *     example 2: strtr('äaabaåccasdeöoo', 'äåö','aao');
    // *     returns 2: 'aaabaaccasdeooo'
    // *     example 3: strtr('ääääääää', 'ä', 'a');
    // *     returns 3: 'aaaaaaaa'
    // *     example 4: strtr('http', 'pthxyz','xyzpth');
    // *     returns 4: 'zyyx'
    // *     example 5: strtr('zyyx', 'pthxyz','xyzpth');
    // *     returns 5: 'http'
    // *     example 6: strtr('aa', {'a':1,'aa':2});
    // *     returns 6: '2'
    var fr = '',
        i = 0,
        j = 0,
        lenStr = 0,
        lenFrom = 0,
        tmpStrictForIn = false,
        fromTypeStr = '',
        toTypeStr = '',
        istr = '';
    var tmpFrom = [];
    var tmpTo = [];
    var ret = '';
    var match = false;

    // Received replace_pairs?
    // Convert to normal from->to chars
    if (typeof from === 'object') {
        tmpStrictForIn = this.ini_set('phpjs.strictForIn', false); // Not thread-safe; temporarily set to true
        from = this.krsort(from);
        this.ini_set('phpjs.strictForIn', tmpStrictForIn);

        for (fr in from) {
            if (from.hasOwnProperty(fr)) {
                tmpFrom.push(fr);
                tmpTo.push(from[fr]);
            }
        }

        from = tmpFrom;
        to = tmpTo;
    }

    // Walk through subject and replace chars when needed
    lenStr = str.length;
    lenFrom = from.length;
    fromTypeStr = typeof from === 'string';
    toTypeStr = typeof to === 'string';

    for (i = 0; i < lenStr; i++) {
        match = false;
        if (fromTypeStr) {
            istr = str.charAt(i);
            for (j = 0; j < lenFrom; j++) {
                if (istr == from.charAt(j)) {
                    match = true;
                    break;
                }
            }
        } else {
            for (j = 0; j < lenFrom; j++) {
                if (str.substr(i, from[j].length) == from[j]) {
                    match = true;
                    // Fast forward
                    i = (i + from[j].length) - 1;
                    break;
                }
            }
        }
        if (match) {
            ret += toTypeStr ? to.charAt(j) : to[j];
        } else {
            ret += str.charAt(i);
        }
    }

    return ret;
}