// Home
tab1on=new Image();
tab1on.src="Images/tab1_roll.gif";
tab1off=new Image();
tab1off.src="Images/tab1.gif";

// Articles
tab_articles_on=new Image();
tab_articles_on.src = "Images/tab_articles_roll.gif";
tab_articles_off=new Image();
tab_articles_off.src="Images/tab_articles.gif";

// Community
tab4on=new Image();
tab4on.src="Images/tab4_roll.gif";
tab4off=new Image();
tab4off.src="Images/tab4.gif";

// BlueInkDemo
tab_demo_on=new Image();
tab_demo_on.src ="Images/tab_demo_roll.gif";
tab_demo_off=new Image();
tab_demo_off.src="Images/tab_demo.gif";

// AboutUs
tab5on=new Image();
tab5on.src="Images/tab5_roll.gif";
tab5off=new Image();
tab5off.src="Images/tab5.gif";

function imgOn(imgName){
	if(document.images)document[imgName].src=eval(imgName+"on.src");
}
function imgOff(imgName){
	if(document.images)document[imgName].src=eval(imgName+"off.src");
}