Bug 202892 [SVG]Error pops up when click value series if set interactivity Blur/InvokeScript [13]
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/EventHandlers.java
.append( "	if (this.text) {\n" ) 
			.append( "		this.textNode = svgDocument.createTextNode(this.text);\n" ) 
			.append( "		this.element.appendChild(textNode);\n" ) 
			.append( "	}\n" ) 
			.append( "		\n" ) 
			.append( "	parent.insertBefore(this.element, before);\n" ) 
			.append( "	};	\n" ) 
			.append( "		\n" ) 
			.append( "		\n" ) 
			.append( "	BuildHelper.prototype.removeNode = function() {	\n" ) 
			.append( "	if (this.element) this.element.parentNode.removeChild(this.element);\n" ) 
			.append( "	this.tag = \"\";\n" ) 
			.append( "	this.attrList = null;\n" ) 
			.append( "	this.text = null;\n" ) 
			.append( "	this.element = null;\n" ) 
			.append( "	this.textNode = null;\n" ) 
			.append( "	};	\n" ) 
			.append( "	function TM(){	\n" ) 
			.append( "	}	\n" ) 
			.append( "		\n" ) 
			.append( "TM.setParent = function TooltipManager_setParent(parent, mainSvg){\n" ) 
			.append( "	this.parent = parent;	\n" ) 
			.append( "	this.mainSvg = mainSvg	\n" ) 
			.append( "	}	\n" ) 
			.append( "		\n" ) 
			.append( "	TM.toggleToolTip = function TooltipManager_toggleToolTip(evt){	\n" ) 
			.append( "	if (typeof this.group != 'undefined'){	\n" ) 
			.append( "	  TM.remove();\n" ) 
			.append( "	}else{	\n" ) 
			.append( "	  TM.show(evt);\n" )