function showPart(idForm,idImg1,idImg2){

	document.getElementById(idImg1).style.display="none";
	document.getElementById(idImg2).style.display="block";
	document.getElementById(idForm).style.display="block";
	
  	return true;
}
function hidePart(idForm,idImg1,idImg2){
	document.getElementById(idImg1).style.display="block";
	document.getElementById(idImg2).style.display="none";
	document.getElementById(idForm).style.display="none";
	
  	return true;
}

function showSingle(idForm){

	if(document.getElementById(idForm).style.display=="none"){
		document.getElementById(idForm).style.display="block";
	}else{
		document.getElementById(idForm).style.display="none";
	}
  	return true;
}
function setSize() {
  var elementName = 'page';
  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement &&
      ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
  
  var style = document.getElementById(elementName).style;

  style.width=((myWidth*79)/100)+"px";
  style.minHeight=((myHeight*79)/100)+"px";
  
}