function setWidth(){
	var theRules = new Array();
	if (document.styleSheets[0].cssRules){
		theRules = document.styleSheets[0].cssRules;
		for (i=0; i<theRules.length; i++){
			if (theRules[i].selectorText=="#bodytxt"){
			theRules[i].style.setProperty('width', '700px', null);
			}
			else if(theRules[i].selectorText=="#middle"){
			theRules[i].style.setProperty('width', '700px', null);
			theRules[i].style.setProperty('margin-left', '0', null);
			}
		}
	}
	else if (document.styleSheets[0].rules){
		theRules = document.styleSheets[0].rules;
		for (i=0; i<theRules.length; i++){
			if (theRules[i].selectorText=="#bodytxt"){
			theRules[i].style.width=700;
			}
			else if(theRules[i].selectorText=="#middle"){
			theRules[i].style.width=700;
			theRules[i].style.margin=0;
			}
		}
	}
}