function input_enter(id,f,text)
{
	var _elem = document.getElementById(id);
	if (!_elem) return;

	if (f && _elem.value == text) {
		_elem.value = "";
		_elem.style.color = "black";
	}
	if (!f && _elem.value.length == 0) {
		_elem.value = text;
		_elem.style.color = "#a29c8e";
	}
}
var dhtmlgoodies_tooltip = false;
var dhtmlgoodies_tooltipShadow = false;
var dhtmlgoodies_shadowSize = 4;
var dhtmlgoodies_tooltipMaxWidth = 150;
var dhtmlgoodies_tooltipMinWidth = 100;
var dhtmlgoodies_iframe = false;
var tooltip_is_msie = (navigator.userAgent.indexOf('MSIE')>=0 && navigator.userAgent.indexOf('opera')==-1 && document.all)?true:false;
function showTooltip(e,tooltipTxt)
{
var bodyWidth = Math.max(document.body.clientWidth,document.documentElement.clientWidth) - 20;
if(!dhtmlgoodies_tooltip){
dhtmlgoodies_tooltip = document.createElement('DIV');
dhtmlgoodies_tooltip.id = 'dhtmlgoodies_tooltip';
dhtmlgoodies_tooltipShadow = document.createElement('DIV');
dhtmlgoodies_tooltipShadow.id = 'dhtmlgoodies_tooltipShadow';
document.body.appendChild(dhtmlgoodies_tooltip);
document.body.appendChild(dhtmlgoodies_tooltipShadow);	
if(tooltip_is_msie){
dhtmlgoodies_iframe = document.createElement('IFRAME');
dhtmlgoodies_iframe.frameborder='5';
dhtmlgoodies_iframe.style.backgroundColor='#892901';
dhtmlgoodies_iframe.src = '#'; 	
dhtmlgoodies_iframe.style.zIndex = 100;
dhtmlgoodies_iframe.style.position = 'absolute';
document.body.appendChild(dhtmlgoodies_iframe);
}		}
dhtmlgoodies_tooltip.style.display='block';
dhtmlgoodies_tooltipShadow.style.display='block';
if(tooltip_is_msie)dhtmlgoodies_iframe.style.display='block';
var st = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
if(navigator.userAgent.toLowerCase().indexOf('safari')>=0)st=0; 
var leftPos = e.clientX + 10;
dhtmlgoodies_tooltip.style.width = null;	// Reset style width if it's set 
dhtmlgoodies_tooltip.innerHTML = tooltipTxt;
dhtmlgoodies_tooltip.style.left = leftPos + 'px';
dhtmlgoodies_tooltip.style.top = e.clientY + 10 + st + 'px';
dhtmlgoodies_tooltipShadow.style.left =  leftPos + dhtmlgoodies_shadowSize + 'px';
dhtmlgoodies_tooltipShadow.style.top = e.clientY + 10 + st + dhtmlgoodies_shadowSize + 'px';
if(dhtmlgoodies_tooltip.offsetWidth>dhtmlgoodies_tooltipMaxWidth){	/* Exceeding max width of tooltip ? */
dhtmlgoodies_tooltip.style.width = dhtmlgoodies_tooltipMaxWidth + 'px';
}
var tooltipWidth = dhtmlgoodies_tooltip.offsetWidth;		
if(tooltipWidth<dhtmlgoodies_tooltipMinWidth)tooltipWidth = dhtmlgoodies_tooltipMinWidth;
dhtmlgoodies_tooltip.style.width = tooltipWidth + 'px';
dhtmlgoodies_tooltipShadow.style.width = dhtmlgoodies_tooltip.offsetWidth + 'px';
dhtmlgoodies_tooltipShadow.style.height = dhtmlgoodies_tooltip.offsetHeight + 'px';		
if((leftPos + tooltipWidth)>bodyWidth){
dhtmlgoodies_tooltip.style.left = (dhtmlgoodies_tooltipShadow.style.left.replace('px','') - ((leftPos + tooltipWidth)-bodyWidth)) + 'px';
dhtmlgoodies_tooltipShadow.style.left = (dhtmlgoodies_tooltipShadow.style.left.replace('px','') - ((leftPos + tooltipWidth)-bodyWidth) + dhtmlgoodies_shadowSize) + 'px';
}
if(tooltip_is_msie){
dhtmlgoodies_iframe.style.left = dhtmlgoodies_tooltip.style.left;
dhtmlgoodies_iframe.style.top = dhtmlgoodies_tooltip.style.top;
dhtmlgoodies_iframe.style.width = dhtmlgoodies_tooltip.offsetWidth + 'px';
dhtmlgoodies_iframe.style.height = dhtmlgoodies_tooltip.offsetHeight + 'px';
}	}
function hideTooltip()
{
dhtmlgoodies_tooltip.style.display='none';
dhtmlgoodies_tooltipShadow.style.display='none';		
if(tooltip_is_msie)dhtmlgoodies_iframe.style.display='none';		
}

function sn_action(r) 
{
   
    var tbEmail = document.getElementById(r);

    if ((tbEmail != null))
    
        if (tbEmail.value != "")
        {
            //проверяем на корректность
            var p_email = tbEmail.value;
            var t = p_email.indexOf("@");
            if( (CheckEnSymbols(p_email)) || (p_email.indexOf("@",t+1) != -1) || (p_email.indexOf(".") == -1) || (t == -1) || (t < 1) || (t > p_email.length - 5) || (p_email.charAt(t - 1) == '.') || (p_email.charAt(t + 1) == '.')) 
            {
                alert("Некорректно указан e-mail !");
                tbEmail.focus();
                return;
            }
            alert("корректно  e-mail !");
        }
        else
        {
            alert("Пожалуйста, введите Ваш e-mail.");
            tbEmail.focus();
        }
}
function CheckEnSymbols(st)
{
  var k=0;
  for(i=0; i<st.length; i++)
  {
    if ((st.charCodeAt(i)>1040) && (st.charCodeAt(i)<1104))
      k++;
    else if ( (st.charCodeAt(i)==1110) && (st.charCodeAt(i)==1111) && (st.charCodeAt(i)==1030) && (st.charCodeAt(i)==1031) && (st.charCodeAt(i)==1108) && (st.charCodeAt(i)==1028))
      k++;
  }
  if (k>0)
    return true;
  else return false;    
}