// JavaScript Document

function setHeight() {
    var x,y,h,b;
    if (self.innerHeight) {
	    x = self.innerWidth;
	    y = self.innerHeight; 
    } else if (document.documentElement && document.documentElement.clientHeight) {
	    x = document.documentElement.clientWidth;
	    y = document.documentElement.clientHeight - 22;
    } else if (document.body) {
	    x = document.body.clientWidth;
	    y = document.body.clientHeight - 22;
    }
    
    b = Math.round((x - 820) / 2) + "px";
    h = Math.round((y - 500) / 2) + "px";
  	if (document.getElementById) {
	    document.getElementById('body').style.marginLeft = b;
	    document.getElementById('body').style.marginTop = h;
	  } else if (document.all) {
		  document.all['body'].style.marginLeft = b;
		  document.all['body'].style.marginTop = h;
	  } else if (document.layers) {
		  document.layers['body'].marginLeft = b;
		  document.layers['body'].marginTop = h;
	  }
}

function hide(id) {
    try {
      if (document.getElementById) {
        document.getElementById(id).style.display = "none";
      } else if (document.all) {
        document.all[id].style.display = "none";
      } else if (document.layers) {
        document.layers[id].style.display = "none";
      }
    }
    catch (error) { error = null; }
}