function checkMail(value) {
	re =/^[A-Za-z0-9_\-]+(\.[A-Za-z0-9_\-]+)*@([A-Za-z0-9_\-]+\.)+[A-Za-z0-9_\-]{2,3}$/;
	if(!re.test(value))
		return false;
	return true;
}
function isNumber(str)
{
	for (i=0; i<str.length; i++)
	{
		c=str.substring(i,i+1)
		if (c==',') c='.';
		if	(isNaN(c) && c!='.' && c!=',')
			return false;
	}
	return true;
}
function CheckFieldInDate(value) {
	re =/\d{2}.\d{2}.\d{4}/;
	if(!re.test(value))
		return false;
	return true;
}

function CheckFieldInSpace(value) {
	count = value.length;
	count_space = 0;
	for (i = 0; i < count; i++)	{
		if (value.charAt(i) == " " || value.charAt(i) == "\t")
			count_space++;
	}
	if (count_space == count || count == 0) return true;
	else return false;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function blEvents() {
	document.ondragstart=returnFalse;
	document.ondrag=returnFalse;
	document.ondragend=returnFalse;
	var arrTags = ["A", "ADDRESS", "AREA", "B", "BDO", "BIG", "BLOCKQUOTE", "CAPTION", "CENTER", "CITE", "CODE", "CUSTOM", "DD", "DFN", "DIR", "DIV", "DL", "DT", "EM", "FIELDSET", "FORM", "hn", "HR", "I", "IMG", "LEGEND", "LI", "LISTING", "MENU", "NOBR", "OL", "P", "PLAINTEXT", "PRE", "S", "SAMP", "SMALL", "SPAN", "STRIKE", "STRONG", "SUB", "SUP", "TD", "TH", "TR", "TT", "U", "UL", "IMG"];
	for(var i=0; i<arrTags.length; i++) {
		setEventsForElements(arrTags[i])
	}
}
function setEventsForElements(tagName) {
	allObj = document.getElementsByTagName(tagName);
	for(var i=0; i<allObj.length; i++) {
		allObj[i].oncopy=returnFalse;
		if(!blVariable)allObj[i].oncontextmenu=returnFalse;
	}
}
function returnFalse() { if(!blVariable)return false; }