// alert("hi");



//CHECK FOR NUMERIC
function chk_num(field_obj) {
	if(isNaN(field_obj.value)) {
		field_obj.value = "";
	}
}



// SELECT CHECKBOX
function set_checked(frm,val) 
{
	var frm = eval(frm);
	dml = frm;
			
	len = dml.elements.length;
	var i=0;
	
	for( i=0 ; i<len ; i++) 
	dml.elements[i].checked=val;
}

// UN-SELECT CHECKBOX
function uncheck(field)
{
	for (i = 0; i < field.length; i++) {
		field[i].checked = false;
	}
}



// OPEN POP-UP WINDOW FUNCTION
function openPopupWindow(path, name, wd, hgt, return_win_ref, menubar, resizable, scrollbars, titlebar, toolbar, alwaysRaised) 
{	
    for (var i=arguments.length; i<openPopupWindow.length; i++) 
	{
		if (typeof(arguments[i]) == "undefined" && i == 7) 
		{
			arguments[i] = "yes";
		} 
		else 
			{
				arguments[i] = "no";
			}
	}	
    	
    var win_parameter = 'width=' + arguments[2] + ', height=' + arguments[3] + ', menubar=' + arguments[5] + ', resizable=' + arguments[6] + ', scrollbars=' + arguments[7] + ', titlebar=' + arguments[8] + ', toolbar=' + arguments[9] + ', alwaysRaised=' + arguments[10];
    var win_obj = window.open(path, name, win_parameter);	
    if (return_win_ref)	
	{
		return win_obj;
    }
}


// OPEN POP-UP WINDOW FUNCTION 2
function open_new_popup_win(url, window_name, width, height, x, y)
{
	mywindow = window.open (url, window_name,"location=1,status=1,scrollbars=1,width=" + width + ",height=" + height);
	mywindow.moveTo(x, y);
}




// VALIDATE EMAIL

function validate_email(str) {
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)

	if (str.indexOf(at)==-1) { return false; }
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr) { return false; }
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr) { return false; }
	if (str.indexOf(at,(lat+1))!=-1) { return false; }
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot) { return false; }
	if (str.indexOf(dot,(lat+2))==-1) { return false; }		
	if (str.indexOf(" ")!=-1) { return false; }

	return true;
}


function show_nav_redirect(sid) {
	location.href = "show_details.php?sid=" + sid;
}