var agt=navigator.userAgent.toLowerCase();
var is_opera = (agt.indexOf("opera") != -1);

function ShowTips(obj, field, hide)
{
    if (field == '')
    {
    	field = obj.id.substr(2);
    }

    var helpObj = document.getElementById('mHelpDiv');    
    if (!helpObj) return;

    var helpDiv = document.getElementById('mHelpDiv2');
    if (!helpDiv) return;
    
    if (hide) {
        helpObj.style.display = 'none';
        return;
    }
    
    var hObj = 0;
    
  	if (document.all) {
	   hObj = document.all[field+"_help"];
    }
	else if (document.getElementById) {
       hObj = document.getElementById(field+"_help");	
	}

    if (!hObj) return;
    //alert(hObj.offsetWidth);
    helpObj.style.width = parseInt(hObj.style.width)+"px";
    //helpObj.style.height = "100px";
    helpDiv.innerHTML = hObj.innerHTML;

		//Get location of mouseover object, move help object to the left if will display off-screen
		var divWidth = parseInt(hObj.offsetWidth);
		var offsetLeft = getOffsetLeft(obj);
		var screenWidth = (window.innerWidth) ? window.innerWidth - 25 : document.body.clientWidth;
		if ((offsetLeft + divWidth) > screenWidth) offsetLeft = screenWidth - divWidth;
		
		//Get location of mouseover object, move help object on top if will display off-screen
		var divHeight = parseInt(hObj.offsetHeight);
		var offsetTop = getOffsetTop(obj) + obj.offsetHeight;
		var screenHeight = (window.innerHeight) ? window.innerHeight - 25 : document.body.clientHeight;
		if ((offsetTop + divHeight) > screenHeight + getScrollY()) offsetTop = getOffsetTop(obj) - divHeight - 3; else offsetTop += 10;
		newY = offsetTop;	
	
		newX = parseInt(offsetLeft) - 50;
		if (newX < 0) newX = 0;

    helpObj.style.top = parseInt(newY) + "px";
	helpObj.style.left = parseInt(newX) + "px";
	
	//alert("X: "+newX+", Y: "+newY+", W: "+helpObj.style.width+", H: "+helpObj.style.height);
    helpObj.style.display = 'block';
}

function ShowHelp(obj,field,hide)
{
    if (field == '')
    {
    	field = obj.id.substr(2);
    }
	
	//Get help object
	var helpObj;
	if (document.all){
	helpObj = document.all[field+"_help"];}
	else if (document.getElementById){
		helpObj = document.getElementById(field+"_help");}

		if (helpObj) {
		//if help object is shown, hide it ; if object hidden, show it
		if (hide){
		  helpObj.style.display = "none";}
		else{
		  helpObj.style.display = "";}

		//Get location of mouseover object, move help object to the left if will display off-screen
		var divWidth = 340;
		var offsetLeft = getOffsetLeft(obj);
		var screenWidth = (window.innerWidth) ? window.innerWidth - 25 : document.body.clientWidth;
		if ((offsetLeft + divWidth) > screenWidth) offsetLeft = screenWidth - divWidth;
		
		//Get location of mouseover object, move help object on top if will display off-screen
		var divHeight = parseInt(helpObj.offsetHeight);
		var offsetTop = getOffsetTop(obj) + parseInt(obj.offsetHeight);
		var screenHeight = (window.innerHeight) ? window.innerHeight - 25 : document.body.clientHeight;
		if ((offsetTop + divHeight) > screenHeight + getScrollY()) offsetTop = getOffsetTop(obj) - divHeight - 3; else offsetTop += 10;
		newY = offsetTop;	
	
		newX = parseInt(offsetLeft) - 50;
		if (newX < 0) newX = 0;

		helpObj.style.top = parseInt(newY) + "px";
		helpObj.style.left = parseInt(newX) + "px";

		if (!hide){
		  qh_hideElement("select",helpObj);  
		  qh_hideElement("object",helpObj);  
		  qh_hideElement("embed",helpObj);  }
		else{
		  qh_showElement("select");  
		  qh_showElement("object");  
		  qh_showElement("embed");}
	}
}

function getOffsetTop (elm) {
	var mOffsetTop = elm.offsetTop;
	var mOffsetParent = elm.offsetParent;
	while (mOffsetParent) {
		mOffsetTop += parseInt(mOffsetParent.offsetTop);
		mOffsetParent = mOffsetParent.offsetParent;}
	return mOffsetTop;
}

function getOffsetLeft (elm) {
	var mOffsetLeft = elm.offsetLeft;
	var mOffsetParent = elm.offsetParent;
	while (mOffsetParent) {
		mOffsetLeft += parseInt(mOffsetParent.offsetLeft);
		mOffsetParent = mOffsetParent.offsetParent;}
	return mOffsetLeft;
}

function getScrollY() {
  var scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape
    scrOfY = parseInt(window.pageYOffset);}
  else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM
    scrOfY = parseInt(document.body.scrollTop);}
  else if( document.documentElement &&
      ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6
    scrOfY = parseInt(document.documentElement.scrollTop);}
  return scrOfY;
}

function qh_hideElement( elmID, overDiv ) {
    tab = document.getElementsByTagName(elmID);
    for(i = 0; i < tab.length; i++) {
      obj = tab[i];
      if(!obj || !obj.offsetParent) continue;


      // Find the element's offsetTop and offsetLeft relative to the BODY tag.
      objLeft   = parseInt(obj.offsetLeft);
      objTop    = parseInt(obj.offsetTop);
      objParent = obj.offsetParent;

      while(objParent && objParent.tagName.toUpperCase() != 'BODY') {
        objLeft  += parseInt(objParent.offsetLeft);
        objTop   += parseInt(objParent.offsetTop);
        objParent = objParent.offsetParent;
      }

      objHeight = parseInt(obj.offsetHeight);
      objWidth  = parseInt(obj.offsetWidth);
      
      if((parseInt(overDiv.offsetLeft) + parseInt(overDiv.offsetWidth)) <= objLeft);
      else if((parseInt(overDiv.offsetTop) + parseInt(overDiv.offsetHeight)) <= objTop);
      else if(parseInt(overDiv.offsetTop) >= (objTop + objHeight));
      else if(parseInt(overDiv.offsetLeft) >= (objLeft + objWidth));
      else {
        obj.style.visibility = 'hidden';
      }
    }
}
function qh_showElement(elmID) {
  var tab = document.getElementsByTagName(elmID);
    for(i = 0; i < tab.length; i++) {
      obj = tab[i];
      if(!obj || !obj.offsetParent) continue;
      obj.style.visibility = '';
    }
}