var textArray = ['Welcomes','You','www.DHAPRI.com','for free test'];

var maxFontSize = 70;// Maximum font size in pixels
var zoomSpeed = 5; // Lower = Faster
var fontIncrementBy = 2; // Step of font size incrementation ( Higher = faster)
var delayBetweenWords = 300;// Microseconds between each word
var delayAtEnd = 500; // Microseconds delay after last word

var textIndex = 0;// Don't change this value
function executeZoomScript()
{
var obj = document.getElementById('zoomingText');
if(textIndex<textArray.length){

obj.style.fontSize = '1px';
obj.style.lineHeight = document.body.clientHeight + 'px';
obj.innerHTML = textArray[textIndex];
zoomText();
}else{
setTimeout("document.getElementById('zoomingTextContainer').style.display = 'none'",delayAtEnd);
}
}

function zoomText(){
var obj = document.getElementById('zoomingText');
var fontSize = obj.style.fontSize.replace('px','');
fontSize = fontSize/1 + fontIncrementBy;
obj.style.fontSize = fontSize + 'px';
if(fontSize<maxFontSize){
setTimeout('zoomText()',zoomSpeed);
}else{
textIndex++;
setTimeout('executeZoomScript()',delayBetweenWords);
} 

}
window.onload = executeZoomScript;