function getImageByName(imageName)
{
	for(var i=0;i<document.images.length;i++){
		if(document.images[i].src.indexOf(imageName) >= 0)return i;
	}
	return -1;
}

function setMsg(msg)
{
	window.status = msg+' ';
	return true;
}

function closeWindow()
{
	window.close();
}

function Back(){history.back();}

function isNetscape(){return (navigator.appName.toLowerCase().indexOf('netscape') >= 0) ? true : false;}

function checkEmail(s)
{
	if(s.indexOf("@") < 0)return false;
   	var RegExp = /^((([a-z]|[0-9]|!|#|$|%|&|'|\*|\+|\-|\/|=|\?|\^|_|`|\{|\||\}|~)+(\.([a-z]|[0-9]|!|#|$|%|&|'|\*|\+|\-|\/|=|\?|\^|_|`|\{|\||\}|~)+)*)@((((([a-z]|[0-9])([a-z]|[0-9]|\-){0,61}([a-z]|[0-9])\.))*([a-z]|[0-9])([a-z]|[0-9]|\-){0,61}([a-z]|[0-9])\.)[\w]{2,4}|(((([0-9]){1,3}\.){3}([0-9]){1,3}))|(\[((([0-9]){1,3}\.){3}([0-9]){1,3})\])))$/
    	if(!RegExp.test(s))return false;
	return true;
}

function isValidURL(url){
    var RegExp = /^(([\w]+:)?\/\/)?(([\d\w]|%[a-fA-f\d]{2,2})+(:([\d\w]|%[a-fA-f\d]{2,2})+)?@)?([\d\w][-\d\w]{0,253}[\d\w]\.)+[\w]{2,4}(:[\d]+)?(\/([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)*(\?(&?([-+_~.\d\w]|%[a-fA-f\d]{2,2})=?)*)?(#([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)?$/;
    if(RegExp.test(url)){
        return true;
    }
    else{
        return false;
    }
}

function checkForAbc(s) {return  checkFor(s,"abcdefghijklmnopqrstuvwxyx ");}
function checkForNum(s) {return  checkFor(s,"0123456789");}
function checkForDec(s) {return  checkFor(s,"0123456789.");}

function checkFor(s,GS)
{
	var i = 0;
	s = s.toLowerCase();
	while(i < s.length){
		var ch = s.charAt(i);
		if(GS.indexOf(ch) < 0)return false;
		i++;
	}
	return true;
}
function getNetscapeVer()
{
	if(!isNetscape())return -1;
	var s = navigator.appVersion;
	return s.substring(0,1);
}

function isIE()
{
    var _info = navigator.userAgent;
    var _ie   = (_info.indexOf("MSIE") > 0 && _info.indexOf("Win") > 0 && _info.indexOf("Windows 3.1") < 0);
    return _ie;
}

function getIEVer()
{
	if(!isIE())return -1;
	var s = navigator.appVersion;
	var i   = s.indexOf("MSIE")+5;
	var sv = s.substring(i,i+3);
	return s.substring(i,i+3);
}