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function getWidth()
{
var strWidth,clientWidth,bodyWidth;
clientWidth = document.documentElement.clientWidth;
bodyWidth = document.body.clientWidth;
if(bodyWidth > clientWidth){
strWidth = bodyWidth + 0;
} else {
strWidth = clientWidth;
}
return strWidth;
}
function getHeight()
{
var strHeight,clientHeight,bodyHeight;
clientHeight = document.documentElement.clientHeight;
bodyHeight = document.body.clientHeight;
if(bodyHeight > clientHeight){
strHeight = bodyHeight + 0;
} else {
strHeight = clientHeight;
}
return strHeight;
}
function showScreen()
{
var Element = document.getElementById('Message');
var Elements = document.getElementById('Screen');
Elements.style.width = getWidth();
Elements.style.height = getHeight();
Element.style.display = 'block';
Elements.style.display = 'block';
}
function hideScreen()
{
var Element = document.getElementById('Message');
var Elements = document.getElementById('Screen');
Element.style.display = 'none';
Elements.style.display = 'none';
}