function validate_email(input) {
	s= input.value
	if(s.search) {
		return (s.search(new RegExp("^([-!#$%&'*+./0-9=?A-Z^_`a-z{|}~])+@([-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+\\.)+[a-zA-Z]{2,4}$","gi"))>=0)
	}
	if(s.indexOf) {
		at_character=s.indexOf('@')
		if(at_character<=0 || at_character+4>s.length)
			return false
	}
	if(s.length<6)
		return false
	else
		return true
}

function popUP(url, en, boy, param) {
	var params = "screenX=5,screenY=5,top=5,left=5,width="+en+",height="+boy+","+param;
	window.open(url, "Dummy", params)
}

function phone_check(input) {
    var chars = "0123456789";
    var str = String(input)
    var len = str.length;
    
    if (len != 10) {           
       return false;		
    }
  
    if ( (str.charAt(3) == "0") || str.charAt(0) == "0" ) {
       return false;		
    }

    for (var i = 0; i < len; i++){  
        var chr = str.charAt(i);
        if (chars.indexOf(chr) == -1){
            return false;
        }
    }

    return true

}

function clearForm(f) {
	for (var i=0; i<f.elements.length; i++) {
		if (f.elements[i].type == 'text') {
			f.elements[i].value = '';
		} else if (f.elements[i].type.substring(0,6) == 'select') {
			f.elements[i].selectedIndex = 0;
		} else if (f.elements[i].type.substring(0,8) == 'checkbox') {
			f.elements[i].checked = false;
		} else if (f.elements[i].type.substring(0,5) == 'radio') {
			f.elements[i].checked = false;
		} else if (f.elements[i].type == 'textarea') {
			f.elements[i].value = '';
		}
	}
}

function checkAll(f) {
  for(var i=0 ; i<f.elements.length; i++) {
      var e = f.elements[i];
      if((e.type == 'checkbox') && (e.name != 'checkall'))
 	  e.checked = f.checkall.checked;
  }
}

function checkCtrl(f) {
  var len = f.elements.length;
  var totboxes = 0;
  var toton = 0;

	for(var i=0 ; i<len ; i++) {
		var e = f.elements[i];
		if((e.type == 'checkbox') && (e.name != 'checkall')) {
			totboxes++;
			if(e.checked) {
				toton++;
			}
		}
	}
	if(totboxes == toton) {
		f.checkall.checked = true;
	} else {
		f.checkall.checked = false;
	}
}

function setSelectOptions(the_form, the_select, do_check) {
    var selectObject = document.forms[the_form].elements[the_select];
    var selectCount  = selectObject.length;

    for (var i = 0; i < selectCount; i++) {
        selectObject.options[i].selected = do_check;
    } // end for

    return true;
} // end of the 'setSelectOptions()' function

function howMany(selectObject) {
var numberSelected = 0
	for (var i=0; i < selectObject.options.length; i++) {
		if (selectObject.options[i].selected==true)
			numberSelected++
	}
	return numberSelected
}
function IsDigit() {
	return (event.keyCode >= 48) && (event.keyCode <= 57)
}