// JavaScript Document
var UTIL={
	LTrim:function(str)
	{
  var whitespace = new String(" \t\n\r");

  var s = new String(str);

  if (whitespace.indexOf(s.charAt(0)) != -1) {
    // We have a string with leading blank(s)...

    var j=0, i = s.length;

    // Iterate from the far left of string until we
    // don't have any more whitespace...
    while (j < i && whitespace.indexOf(s.charAt(j)) != -1)
    j++;


    // Get the substring from the first non-whitespace
    // character to the end of the string...
    s = s.substring(j, i);
  }

  return s;
}// fin LTrim
,
RTrim:function(str)
{
  // We don't want to trip JUST spaces, but also tabs,
  // line feeds, etc.  Add anything else you want to
  // "trim" here in Whitespace
  var whitespace = new String(" \t\n\r");
  var s = new String(str);

  if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {
    // We have a string with trailing blank(s)...

    var i = s.length - 1;       // Get length of string

    // Iterate from the far right of string until we
    // don't have any more whitespace...
    while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)
      i--;


    // Get the substring from the front of the string to
    // where the last non-whitespace character is...
    s = s.substring(0, i+1);
  }

  return s;
},
fnEmptyField:function(strValue)
{ var i; 
	for ( i=0; i < strValue.length; i++)
            {
				if (strValue.charAt(i) != "<" )
					strValue = strValue.replace("<","&lt;");
                          
            }
    
    
	
	
	strValue = this.RTrim(this.LTrim(strValue));
	if (strValue == "" )
    	return false;
    else
		return true;		
     	    
    },
	 isValidMailadress:function(value)
{
	if(!this.fnEmptyField(value)) return false;
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(value))
	 	{
	 		return true;
	 	} 
     else 
	 	 { 	
	 		
	 		return false;
	 	}
}
,
Alert:function(titre,message)
{ alert( titre + "\n"+message);},
Demande:function (titre,message)
{ return prompt( titre + "\n"+message);}
	
	
	
};