/**
 * "Blow up" the main content if it too small.
 * Equivalent of 'min-height', only this is needed 
 * for you know-what-browser 
 */


/**
 * this is the min-height of the content element
 */
var minHeight = 490;

/* some strange behaviour when domready, 
 * add this to measured height of content element and 
 * the comparison will be more of use
 */
var delta = 60 

window.addEvent('resize', function() {
	var h = $$('div.text_item_blown_up').getStyle('height');
	h = h.toString()
	h = h.toInt()
	if((h + delta)  < minHeight) {
		$$('div.text_item_blown_up').setStyle('height', minHeight + 'px');
	}
});		
		
window.addEvent('domready', function(){
	var h = $$('div.text_item_blown_up').getStyle('height');
	h = h.toString()
	h = h.toInt()
	if((h + delta) < minHeight) {
		$$('div.text_item_blown_up').setStyle('height', minHeight + 'px');
	}		
});


/******************************************
/   open a new window
/   parameters: url, window name, style
******************************************/
function openWindow(url, windowName, style)
{
    aWindow = window.open(url, windowName, style)
}

/****************************************
/   set focus to first form field, 
/   parameter = form name
*****************************************/

function setFocus(formName)
{
    document.forms[formName].elements[0].focus()
}

function formReset(formName)
{
    //alert(document.forms[formName].elements.length)
    for (i = 0; i < document.forms[formName].elements.length; i++ )
    {
        //alert(document.forms[formName].elements[i].type)
        if (document.forms[formName].elements[i].type == "text")
        {
            document.forms[formName].elements[i].value = ""
        }
        if (document.forms[formName].elements[i].type == "password")
        {
            document.forms[formName].elements[i].value = ""
        }
        if (document.forms[formName].elements[i].type == "checkbox")
        {
            document.forms[formName].elements[i].checked = false
        }
        if (document.forms[formName].elements[i].type == "radio")
        {
            document.forms[formName].elements[i].checked = false
        }
        if (document.forms[formName].elements[i].type == "select-one")
        {
            // problems with data.getParameters().getString() if selectedIndex == -1
            // to do
            document.forms[formName].elements[i].selectedIndex = 0
        }
        if (document.forms[formName].elements[i].type == "select-multiple")
        {
            // problems with data.getParameters().getString() if selectedIndex == -1
            // to do
            document.forms[formName].elements[i].selectedIndex = 0
        }
        if (document.forms[formName].elements[i].type == "textarea")
        {
            document.forms[formName].elements[i].value = ""
        }
    }
    setFocus(formName)
    
    //alert (document.forms[formName].elements.length)
}

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_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_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.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];}
}


var isBack_Clicked = false;

function checkForm(formName) {
   var Array_length;
   if (!isBack_Clicked)
   {
        Array_length = Math.floor(required_formElements.length / 3);	
        for (i=0; i < Array_length; i++  ) {
          // alert("i: " + i);
          // alert("Inhalt: " + document.forms[formName].elements[required_formElements[(i*3)+1]].value);
          // alert("Text: " + required_formElements[(i*3)]);
          if(required_formElements[(i*3)+2] == "r")  // required Field
          {
             if
             (document.forms[formName].elements[required_formElements[(i*3)+1]].value == "") {
                
                alert("'" + required_formElements[i*3] + "'  darf nicht leer sein.");
                document.forms[formName].elements[required_formElements[(i*3)+1]].focus();
                return false;
             }
          }
          if(required_formElements[(i*3)+2] == "e")  // must be Email
          {
             if ((document.forms[formName].elements[required_formElements[(i*3)+1]].value).indexOf("@")<1 || (document.forms[formName].elements[required_formElements[(i*3)+1]].value).indexOf(".")<1)
             {
                alert("'" + required_formElements[i*3] + "'  muss eine gültige E-Mailadresse sein.");
                document.forms[formName].elements[required_formElements[(i*3)+1]].focus();
                return false;             	
             }
          }
        }
   }
   else
   {
       isBack_Clicked=false;
   }

   return true;
}